Lots of good ones out there, its just a matter of personal preference.
My list isn't conclusive by any means, but here are a few that I like:
SIG's Classic P-series, Browning Hi-Powers & Pro's, Glocks, H&K's,
Smith & Wesson model 39-2, 3rd generation auto's, and revolvers.
Old Colt D-frame (Dick Specials, Cobras, and Agents) revolvers
w/o the enclosed ejector rod or shroud, Colt Diamondbacks and
Pythons. Ruger Security-Six, Blackhawk*, Redhawk* and GP-100.
Pocket Guns: Seecamps, Berettas, NAA mini revolvers. Never owned
a Kel-Tec, so I can't address their firearms. Worthy of note: Bersa
Thunder DT .380, as it can't be beat for the price!
As for 1911's: Colts, Springfields, and Kimbers rule as I've never
owned a Wilson, Baer, or STI.
*FootNote: indicates, both the regular Blackhawk and Redhawk as
well as the Super Blackhawk and Super Redhawk.