This is true it'd be awesome to have the ability to actually go back and redo your mistakes god that'd be awesome. Hell even the "I'm single, guess it's just me and my palm tonight" becomes... "wait a minute I was going out with xxx just 2 weeks back, ok lets rewind here OH YEAH!"
Teleporter would be pretty cool or Telekinetic because if you were moving stuff around you could easily resist arrest unless you got knocked out by surprise. Teleporter you just escape any arrest.