The 9mm's I have owned for extended periods and shot extensively include Browning HiPower (owned several, have CCW'd many times...always been my favorite nine), Sig 225, Beretta 92FS, Walther P1, and CZ75.
While one or two have come close to eclipsing the HiPower for favorite, the G17 may be the one that does....
The jury is still out on that score, I have not owned my G17 long enough to make that determination, but none of the other nine's I have owned have come so close to replacing the HiPower for me