I loved Command and Conquer (1), it was one of the best RTS games I ever played, Tiberian Sun was even better! The Red Alert series where incredible too, the plot didn't pull me in that much, but the campaign was lovely and well made. But then EA screwed things up...
Generals was a good game, but it was not a C&C game! I didn't like Generals that much, the campain wasn't so great and the gameplay was rather shallow.
Then C&C3, one of the most unbalanced and nerfed games I ever saw, the creators just threw away the plot from Tiberian Sun and started a new one...
I hate EA for doing this to one of my favourite franchises. Luckely Blizzard is still there to keep me excited (not to mention SupCom, COH, WIC and the Total War series)