legraf: Thanks! I"m still curious why people DO play WBC2 though, since many clearly do.
WBC3 doesn't feel to me like a sequel but a mod. Voice acting quality is way worse than in its predecessors, a good chunk of new units look goofy, and the music is a tremendous downgrade (I know this one is subjective and not that important but it does take away from the experience). WBC2 also felt way more cohesive, every race is limited to a handful of classes, which may feel restrictive, but to me it gives them more identity. A demon pyromancer/summoner/death knight makes much more sense than seeing something like a high elf defiler or a fey necromancer.
tl;dr WBC3 has more content but at the same time there's a dip in quality, cohesion and class/race identity.