VOY should've let Chakotay have a regular girlfriend on the show - other than Seska. Having him on short rations, same as Harry Kim, did not aggrandise the character, nor did Chakotay's persistent crush on Janeway. He was her solid XO and that should've been the extent of his interest in her, knowing that Mulgrew's views on that.
Kellin would've been sweet, except I did hate her ears, though. Like B'Elanna, her latex features could've been inexplicably modified, as the show went on. Kellin didn't keep her hair in a very complimentary fashion, iether. So, she was a fixer-upper, perhaps, but a very workable one. It just wasn't in the cards. VOY liked us watching Chakotay sigh, every week, "oh, Kathryn ... my darling."