Browning Hi Power
Its skinny for a hi-cap, all steel for durability, has a simple operating systen (same as 1911), low barrel axis, can be had in stainless too.
13 shots standard, feeds every type of ammo I've ever tried in it.
Only drawback is, its a little heavy, but with a good belt thats no big deal.
Glock has a great reputation too, but i'd get the NY trigger job if i had a glock. I like the model 17 the best, its a bit big for ccw, but its a well made pistol.
Springfield and colt both made really nice commander sized 9mm pistols.