So Tom Paris is the best character?
I'm not voting for him but was just going over some reasons that I have heard from people who do not care for him. I found very few who outright hated him.
Some don't care for him because they believe him to be a Marty Stu (or whatever it is they are calling it these days). He's cute, he can fly the ship yadda yadda. You've seen that list. I could agree with them on that. The number of things that he 'knows' or 'can do' got longer with each episode.
Some find him too 'bland' or 'vanilla'. He is after all the only 'white' boy in the main cast. (Hey...I'm a member of an ethnic minority. I call my husband that sometimes).
One very odd thing I have found (mostly in comment sections that I should not be reading) is some people who apparently watched the show for maybe the first two seasons and gave up on it have that early version of Paris stuck in their heads. A lot of us who know better tend to gang up on them and ask "You didn't watch the later seasons did you?"