I used to play the hell out of WC and WC2 back in the day. The original Warcraft was an amazing game at the time, I remember that my cousin and I would use modem play to face each other, shit was awesome. Heh, the best was how the cheat codes could be used in multiplayer, but would automatically affect both sides.
I remember playing WC2 for the first time and being absolutely amazed at how much better it was. Full CG campaign cinematics, all of the units had unique voices, an easy to use level editor, great animation, it was one hell of a sequel.