Red Alert.- Considered by many to be the best real time strategy game ever, I might agree, at least it's one of the best.
Command & Conquer is, in my opinion, more fun, but then again Red Alert has more units, larger maps and a level editor that's easy to use.

Then we have Command and Conquer - Tiberian Sun
Oh my god what a failure! Here we've waited for years for the game and seen exciting screenshots and heard all cool news and when I played it i found out that the gameplay were missing, the graphics weren't as cool as I thought it would be, the music was a disappointment and the FMV's where you played someone else!
Westwood - Get a grip or get lost!

Red Alert II - Nice, really nice, sweet music, good graphics. _Much_ better then Tberian Sun.

I haven't done so many maps for Red Alert But I'll upload the two best ones