What teknoid said. I've got/carry both too. I lean toward the striker, carry an M&P most of the time. Some say a hammer can get hung up on clothing, but it never happened to me when carrying a 1911. Carried in C1, so the hammer was out of the way.I'd think that it depended on the gun, and your preference/usage. I've got both types, but no hesitation to carry either one.