I'd take the Doctor as a hologram as a partner over Neelix anyday. Not that I'm particularly attracted to him, although I love his character, but he's way more attractive than Neelix. The character, not the actor I mean, just to be clear.
Apparently Ocampans, or at least Kes, have pretty different tastes, although I think Kes was emotionally pure and enlightened to see beyond the physical.
I do find Date kind of attractive. I may be oversharing.
But he's kind of hard work. He would always be nagging you to improve yourself. I kind of see Neelix as this lovely couch potato, always up for something interesting but not hard to keep up with. I don't find Neelix unattractive, some humans on Star Trek are a lot less cute IMO. I'd take a Talaxian over a Klingon any day.
You can have Data.