I played Warcraft 3 so much before I relaised I actually don't like it. I really like Azeroth and all the characters, but the game is just so lacklustre compared to Starcraft. A hero-driven clickfest and microhell in multiplayer. Starcraft had strategy, WC 3 is nothing.
God, I wish they would gone with the original plan(post-WC Adventures), which was more akin to Myth than Diablo. Thrall as a main character would worked better anyway. Granted, the whole corrupt human plutocrats against the heroic orcish freedom fighters isn't the most original of premises, but the narrative could have supported the small-team of hero-led separatists gameplay model. The game looked to be aspiring to a likeness of Shiny's Sacrifice, which might have been anything but bad.
That is all past though. WC 3 is fun if you find a good opponent in multiplayer, but is has nothing on Starcraft. Not to mention DoW or Ground Control 2 now years later.