Hate to be that guy but the only reason someone could think A2's gameplay is "polished" is that they haven't played anyone who's good at it. Unblockable 50% level 1 CCs, turtle Kens, Rose c. mp x 1,000,000. Ugh... no thank you.
People are entitled to their preferences. A2 certainly has one of the best presentations (music, intro, art) of any Street Fighter game and I'm sure it's fun to blow through arcade mode or play with your friends but I've eaten enough Chun c.mk xx fireball to last a lifetime.