I can't decide between Pilot and ANNET... but I'll go with ANNET because while Pilot may be more deserving of the love, ANNET certainly gets less of it. Poor little Annie. I'll bet she hasn't gotten to talk to her sister over at Aperture in forever.
Zee Captain can never have too much love. Pilot loves Zee Captain. ANNET loves Engi (I think ) but she has no emotions since she is an AI. Skalky loves Zee Captain as much as Pilot does. Leaving Snippy to be forever alone
Sometimes this happens because of votes that are purely "fan" votes, but I I'm pretty sure that's not entirely the case this time.
In the reality of the comic Snippy has no love. His life sucks. Fans don't exist to complement him and tell him how much they love him. No one is there to help him. He's stuck essentially babysitting three of the four only other known humans left, all of who in his mind are different kinds of crazy, while trying not to get killed by the horrible things they keep attracting.
As a character in our world he is very loved -- almost too much in comparison to others, in my opinion. As a person in the RA world he needs it more than some people realize.
It is indeed a good question. I always figured the releationship between ANNET and Engie could've resulted in a few witty jokes and quite possibly a comprehensible storyline, rather than the one that was essentially devoted to Snippy and the Captains Mug which although graphically pleasing was a mindfuck out of a narrative persepective.
I would say lifealope, Stalky or (maybe?) ANNET. Snippy has so much love, if his fangirls/guys showed up in the wasteland, a kingdom of Snippy could be built with he as king...and captain as his insane adviser. Pilot has a lot of love too, I've seen a good bit of engie love, and Captain as well.