Personally I enjoyed Generals. Co-op play over a LAN was great fun, except the AI wasn't really up to it. The graphics were good - show me a better RTS graphics, no TA is NOT. It was a modern day RTS - not many of them about, either medieval or futuristic sci-fi, neither of which float my boat. And Zero Hour added a bunch more maps and things that me and my mates all said would be fun - C-130s, MOABs etc.
Was it great? No. It was FAR too easy (though ZH's Generals challenge could be tough), it was FAR too short and it felt like I was watching a propaganda video: protect these supplies for the innocent Baghdad civilians from the evil terrorists etc. That was just tedious, and it actually made me glad there was no FMV US flag waving nonsense. Furthermore there was not one shred of gameplay innovation since C&C:TD in 1995. Well, maybe since Red Alert (planes, etc) but it included no boats. The ONLY new thing about this game (as opposed to old C&Cs) was that you used construction diggers instead of your construction yard. Like every other RTS since the C&C era. The RTS genre is crying out for someone to do what Valve did in 1998 to FPS. AI, new challenges, plausible storyline. It's not like we're short of subject matter from which to take inspiration these days.
FWIW, even as a Westwood fan, I thought Renegade sucked. SO close to being fun, but it really wasn't. IMO.
We don't go to Ravenholm.