9mm I own (or have owned) include, a CZ 75B, a Ruger KP89, a SIG P226, CZ PCR, CZ P01, CZ 75B Compact, SIG P290RS, Kel Tec PF9.
Out of what I've owned, my favorites:
Full size: hands down the CZ 75B
Compact service pistol: It is a toss up between the three at the range, but probably the PCR since I wanted it so long
Subcompact or micro: the SIG P290
Out of those I don't own but have shot on multiple occasions (either range rentals I've rented on multiple occasions, or friends' guns I've shot many times), the Kahr MK9 and PM9 would be close contenders with the SIG P290. A Beretta 92 might beat out the CZ 75B in looks (I really like the aesthetics of both), and I like the history of both, but I definitely prefer the feel of the CZ (I will likely buy a Beretta 92 before too long). Heck, the Kel Tec P11 I rented many times (and almost bought) probably would serve the purpose I bought the P290 for better (though I love my P290) and who can argue with 10 rounds in a smaller and lighter package?