az, 12/16/11
I have the p245 and the 228 as well as a number of other carry pistols in 9mm and .45. I like the p245 as my primary carry .45. For me the 228's grip is just a bit too fat. I just compared my two pistols and the 245 is about the same length as the 228, about a half inch shorter in the grip and the grip circumference is moderately thinner than the 228 (being a single stack as opposed to the 228's double stack). Of course the downside is that the 245's capacity is 6+1 of .45 while the 228 takes 15 round mags of 9mm. I always carry an extra mag for my 245. So they are both great guns but I like the 245 better for carry.
For what it's worth my favorite 9mm double stack carry pistol is an old SW 6904 with 12+1 of 9mm.
best wishes- oldandslow