Let's see, my opinions on the Blizzard library
Warcraft: The first one was awesome. I remember gettiung a demo disk, a 3.5 floppy, months before the game came out and playing it to death on my shitty 386. It wasn't even fast enough to play Warcraft at full speed, and I *still* played it to death. I think I played Dune 2 more though, mainly because myc omputer could run it full speed, lol.
Warcraft 2: I had a 486 (I think) by the time this came out, and I played it to death. I think I was between machines when the exp hit, though.
Diablo: Played this on my first Pentium, I played it A FUCKING lot.
Starcraft: Never got too into it. Probably why I am not so huge on Starcraft II.
Diablo II: OMG best game ever. I still play it to this day. Blizzard should have released MOAR EXPANSIONS.
Warcraft 3: Couldn't get into it. It was the first game of theirs that felt like a disappointment to me. Scale was so small compared to other RTSes of the day, and even though it's, as warcock would say, all about the micro, it doesn't really have that much depth, in my opinion. It just plays like an RTS where you only have a few units. And the heroes mechanic SOILED RTS games for years afterwards.
WoW: Like the second best game ever behind Diablo 2.