G17, ammo is cheap, fun to shoot, for just 17 bucks you can put some lighter springs, a ghost connector, and decal grips on it. Whalla, you have a great trigger and a firm grip.
I put Night Sights on mine and I love it. I wouldn't carry it concealed; got a smith 1911sc for that.
G17 has a great trigger reset when compared to a M&P. I can make quarter sized holes at 25 ft. I hated it at first but now I shoot the best with it. Long pull first round and then the shortest reset I've ever felt for each additional and with light springs and the ghost connector it's almost the same trigger as my 1911.