I started gaming only some years after the release of CNC Generals and loved the game. I have played the original game plus expansion plus mods plus custom maps, both single and multiplayer, ever since. (I think something is wrong either with the style or grammar of the previous sentence.) CNC Generals, though, was never part of the official CNC lore/universe. I never played the original Red Alert, or 2, or the original Tiberium and am most unfamiliar with the units or the atmosphere of the CNC universe. I tried a few early levels of Red Alert 2 on a website that allows 1-hour trial-download of some antiquated games of the previous decade and lost interest after a few levels. It was perhaps because of the cartoonish graphics, which look like caricatures compared to the models in CNC Generals. Or perhaps because I never grew up hearing or knowing much about the Soviet Union, so I don't have this sensational concept of it as an empire or a powerful entity at all, though I knew while growing up that it had a large area on the map. But there were other countries with large areas on the map that I grew up equally ignorant of.
Perhaps it's because I played CNC Generals for years and then Battle for Middle Earth, which uses the same engine, whenever I download a new CNC demo I either expect the gameplay to be similar to Generals or uses it as the criteria of comparison. I only vaguely remember the demo of Tiberium Wars by now. Though it had better 3D graphics than Generals, something was missing in the gameplay though I don't remember what.
I tried the demo of RA3 yesterday. It did not have the "Generals" effect of "this game is a must have". For reference, here are the best RTS according to me, in my very limited gaming experience. There are more RTS games that I like after having tried the demo that should be on this list, but I rather not add a game to my benchmark list if I only played the demo.
Act of War: Direct Action
CNC Generals
Company of Heroes
Joint Task Force
Sudden Strike
These games have the combination of gameplay, graphics and game design and play factor (atmosphere, I don't know how to describe it) in RTS from my limited experience. Starcraft isn't even on the list because I haven't even finished the Terran campaign, when I last played/tried Starcraft I played till I was with the Ghost on a level with a lot of deployed Siege Tanks and the Ghost is supposed to get into that base. I think there were still many more missions after that. I tried maybe one Protoss campaign mission and haven't played Zergs at all. I haven't played much Starcraft, hence my limited experience.
Out of the ones I listed, JTF and Sudden Strike do not involve gathering of resources. CoH involves the gathering of multiple resources. So only AoW is comparable with RA3. I did notice that RA3 uses the AoW engine, when I saw how the building was built on grids and could only be rotated at 90 degree angles. RA3 also tried to copy AoW's revolutionary style of including actor-filmed action-sequences in between game levels. Whereas AoW had utterly gripping gameplay, RA3 did not achieve something comparable. The hiring of beautiful Gemma Atkinson and Gina Carano does indeed keep the attention riveted when they appear, but more is required in a videogame than well-made loading videos.
I will make a few comments: the graphics, the gameplay, the user interface and the atmosphere. Since I mentioned the loading video characters though, I'll talk about that first, and it does also involve comments about graphics.
I don't remember much from my trying of RA2 by now, though I do remember the somewhat cartoonish graphics. In looks of the units, RA3 seems to be the 3-D graphics port of RA2 and some of the buildings are even reminders of a 3-D graphics port of Warcraft2.
My comment is this: when fans follow a series, they may be nostalgic about the game universe or the gameplay, but when the graphics have evolved from 2-D to 3-D to excellent textured 3-D, the fans of a series would not be nostalgic about the original graphics style.
RA2 had the graphics style of Starcraft and Warcraft and "that cartoony" look. It was drawn that way because that was the limitation of graphics back then. Back then it was probably considered the most realistic drawing/depiction of units on a computer screen, a bit like how Contra was probably considered the most realistic drawing/depiction of units on a console screen. Except, games have evolved from 2-D Contra to 3-D Medal of Honor and Call of Duty.
RA2 probably had funny/humorous conversations, but the cartoon-style of graphics back then was probably considered the usual standard of realism. So I deduce the game had a good mixture of humor and make-believe realism. I can deduce this from playing CNC Generals, which had a good mixture of humor (some really funny lines from units, and the way some units are designed) and make-believe realism. The units, some of whom humorously designed, do look very close to the real thing. When I move Generals units on the battlefield, the treads or wheel marks they leave on the road, the dust cloud, and especially the look of the units, I really felt like I was moving tanks and humvees, or T-55s and APCs, or ZSUs and pick-up trucks. The humor was a nice seasoning, but the main course (or main excitement) were the graphics of the units and gameplay.
RA3 has done the humor tradition very well; however, in 3D-porting the 2D graphics of RA2, it made a world of cartoony or semi-cartoony buildings and units that also look humorous without intending to.
So that there wasn't enough satisfaction moving the units around or interacting with them. I felt like I was moving little toy soldiers and little toy cars. That's not the impression you'd want in an RTS. Maybe that could even be the impression people wanted in the time of RA2, maybe not, I didn't game till mid-college so I wouldn't know. It's definitely not the impression people want in an RTS now, after CNC Generals.
That same impression is made more displayed by the disparity between the look of the characters in the loading videos and the look of the characters on the game map. After watching Natasha speak, I get to see her in-game. Unfortunately it wasn't some Lara Croft or Aeon Flux seen from a distance, it was some cartoon portrayal that was about as real as Black Lotus in Generals. Now, the Generals hero characters were limited by the number of graphics polygon at that time. RA3 definitely isn't limited by that.
Here is a look at some screens of Act of War, the game whose engine was used by RA3, and what it could have looked like:



In-game look of a basic unit (and this is graphics from 2006 or 2005, which means RA3 could have had even more):
In-game graphics zoomed in:




Continued later, with a picture of what these loading-video people look like as in-game units.











The actress who doesn't care about the Hollywood fashion that requests women to be as thin as possible has, apparently, a problem though: she is being paranoid about her height.