Well, I'm a captain on A320. I used to fly B727 and B737 (jurassic and classic) before that.
What I do like less on the Airbus are the non-moving thrust levers (even if I got used to them) and non-connection of the sidesticks. I also think B737's are easier to handle in gusty crosswind conditions then the bus.
Having said that, the positive things I could say about the A320 compared to the others I flew, are far more numerous. I'll save you the long list!
The B727 and B737 are fantastic machines, but still I very much prefer the A320. (BTW: I fly 95% of the approaches with A/P, A/T and F/d's off)
Regards,
Sabenaboy