From a collecting point of view, the Commando will on average be worth twice as much as a comparable Victory, because only 50,000 or so were made.
On the Victory, it really depends what you‘re comparing. Is it a British Service or US version?
As far as use history, quantities of both went to domestic recipients like police and defense contractors. The military-shipped Victorys (if not British) mostly went to the Navy, the Commandos more Army.
For carrying, the Victory is preferable, because it’s lighter, but the Commando is the better shooter, especially aimed single action, which is really all they practiced back then. Better sights, better trigger, better standard grip (even though plastic).