If you're saying canon ships I'd want to command.....
U.S.S. Voyager, Intrepid-Class.
U.S.S. Defiant, Defiant-Class.
U.S.S. Stargazer, Constellation-Class.
In that order, (of most to least important.)
If you're saying non-canon...
Galen's
Legacy-Class U.S.S. Mandela.
Suricata & Kaden's
Pandora-Class Freighter U.S.S. Connestoga-A