My vote has to go for fullsize, preferebly a 4" barrel. I do like how the M&P compact shoots, and feels though. Even though I'm not a huge fan of smaller pistols. I like them all 9mm, .357SIG, .40, and .45.
I mostly enjoy shooting my 6" barrel S&W 686 .357 but with the cost of ammo being so high, I have been shooting and enjoying my 5.5" barrel Browning Buckmark Target .22 with Aimpoint sight. I guess you could consider both of these to be full size.
Ive always been A big fan of full sized pistols (1911's, sig 226 etc) for shooting & carry purposes .I have had a few compacts & sub compacts & discovered that I feel more comfortable with my hand being filled with grip other than having my pinkey hanging under the pistol Im shooting