The 92FS with night sights (all the way to the right) has the most rounds thru it - over 4k in 20 months,... I've had other guns in the past couple of years that I sold - so I do not have some of the guns I've thrown rounds thru. But, that 92FS has the most, followed by the 9mm 1911 Operator.
My fav - honestly, it is that 92FS with the night sights. It's my daily carry gun. I sometimes carry the compact 92FS with night sights. But that fullsize 92 is my fav.
Now, the 9mm 1911 is the most accurate handgun I've ever shot in my life. Expensive too - but it is a full custom gun. However, I still prefer my Berettas to 1911s.