Warcraft was the first RTS I ever played and the first game I remember going to a computer store to buy. I remember seeing the box and that was the game I wanted. I read through the manual, eagerly awaited the never released Warcraft adventures and played Warcraft over and over. When the second one came out it blew my mind. It made everything about the first one better and expanded the story pretty well. It introduced other races, increased unit speed drastically, added aerial and naval combat, got rid of the ridiculous road system and just felt like such an awesome improvement. It was the first game I played over lan. I remember playing with my cousins and my brother when we got a newer computer and had the old one hooked up still. It was amazing to me.
I never felt the same way about Warcraft 3. The 3d graphics were cool, though I didn't really like how cartoonish it all became, I enjoyed the additional races, but it didn't really feel the same. It felt like they took those really annoying maps from the first Warcraft where you had a hero and had to go through those dungeon cave things and made an entire game around it. I played through it all and the expansions, but I don't remember it as fondly. It may have just been that point in my life where I was becoming more disenchanted with video games overall, but the series is still one of those special ones to me. Even if I probably spent far more time with StarCraft and diablo 2. I was addicted to diablo 2 for a while, I can't play games like that any more.