Upload & Sell: Off
I think the Galaxy S2 is smaller? My sister has one, runs very well, although a few niggles (no LED light on the front, she seems to get weird spam in her notification bar). It's not a small phone, but not huge either.
I use a Motorola Defy because it was offered in the contract, and it was something a little different (harder wearing, but still a cheaper smartphone). Marketed as "Life Proof". I think there is a Defy+ now, which is probably better, runs android 2.3 I think (so still lower spec). Mine is unstable with the latest firmware, but I'm putting up with it. It's my first smartphone so it'll definitely give me some perspective for the next one...