Okay - approach it from the opposite angle: What things might
  the phone do that would piss you off? If the phone lasted for 4
  hours and you had to recharge it, would that drive you nuts or
  could you deal with that? Are you a typist? Typists usually like
  qwerty keyboards. that can narrow it down. I think they have
  droids that have keyboards now. find someone with an android and
  have them let you play with it. I still have my blackberry,
  which i love, but when the upgrade's available, I'll probably go
  android with a keyboard route. (can't fully get used to mike's
  touch screen only thing) "