I don't see what all the hype about blizzard games are.
Warcraft and Warcraft II back in the day were a lot of fun, and they didn't need any large innovations when the RTS genre was new.
Starcraft... sucked. I hated that game, and I had been eagerly waiting for it as well. Each side has a wealth of 5 units to draw on, 3 of which are used. Blizzard said they didn't want orcs-in-space, but that's exactly how the game plays. When there are only a couple units on each side the gameplay is no more "dynamic" then paper-rocks-scissors.
What game did I play instead of Starcraft? Total Annihilation, still the best RTS by far.
I didn't find Diablo fun either, a game can be logged as: click click click click click /hack click click. It's like saying... I'd like a game featuring an interface similar to Baldur's gate, only instead of success hinging on utilizing my abilities, I'd just like to click a lot.
Warcraft III and Diablo 2 are the same, only new graphics.
I guess these are good games... but I can't see why Blizzard is considered so Godlike. Perhaps it's just a lack of a title they truely bombed on.