I wouldn't really know. I gave Warcraft III a spin when it first came out at a LAN party. I gotta tell ya, I didn't find it too intriguing. I think personally it lacked the strategy to be considered a decent RTS. The role-playing aspect just brought it down even further. I know it was supposed to be a hybrid, but not every hybrid is good... IE: "Pig & Elephant DNA just won't splice."
The user made maps and Scenarios were fun, though.