Tom Paris has always been my favorite character from Voyager and I really wish he'd had more command opportunities. He did well on Delta Flyer missions and the occasional bout in the Captain's chair. I'd think that his combo of humor and directness would help the crew, especially if he was in command because Janeway/Chakotay/Tuvok were injured/missing/all of them crashed a shuttle/they ate leola root soup again/etc.
I really wish that Voyager
had made better use of its whole cast, then we might've seen Tom take command more often.