a smith M39-2 was my first semi-auto pistol and will always hold a place in my heart...it was sold off years ago to fund another gun purchase.
my 39 would feed anything i fed it as long as it had a bullet weight of more that 100grs. it was very accurate out to about 25 yards and was a great fit in my hand with the factory stocks. my only complaint was its more complicated take-down, compared to a sig or beretta, much like the 1911 or p35.
i never got the hang of the M59 family(459, 659, 5904, 5905, 5906) or the M69 family (469, 669, 6904, 6906) as the handles were just too different from the 39 family (439, 639, 3904, 3906, 3913, 3914)
now the ruger centerfire pistols i have handled have just never felt comfortable to me and their accuracy was always a little disapointing...until the p90 (.45 ACP). the p90 was very accurate but still felt blocky in my hands.
the first i was tempted to buy was the p97. same accuracy as the p90 but with the superior feeling ploymer frame. the newly introduced p345 is making resistance harder still.