Well...the Beretta 92FS is my second favorite. It was the favorite for a long time, until the Walther P99 came around...so...I shall call on my third favorite...
Um...uh...
The Heckler & Koch USP Compact. Two reasons:
1) I'm not an operator. I suck. And HK hates me. But I still want this gun. Maybe it's because you just look like you mean business when you're using it. Maybe because it's just dependable and reliable. I dunno.
2) You'd get pissed at me if I said I wanted an M1911A1, wouldn't you?