I perform a standard utility switch with a slow, visual bend that was taught on Go Magic Go! (I forget what episode) It looks great and works well.
I've also had great success with Dee Christopher's Syn. It's a double coin bend, one visually and one in the spectators hand. This is a simultaneous bend and has a method that allows the spectator to tell everyone they can feel the coin bending in their hand.
With the first one, the reactions are awesome, I vary up the way I bend the coin from time to time...but borrow a quarter and bend it, give it back. You need a convincing performance to make people believe you, but bending a coin is hard hitting.
I've only performed Syn a handful of times, it killed on multiple levels every time. The visual bending of the first quarter (when practiced well) looks beautiful and then a quarter that was regular moments before is bent in their hand after the first...it's pretty damn amazing.