I like Faith and Giles' canon relationship in the comics. It's not romantic (from what I remember), but it's close. Both of them are kind of outcasts and in Buffy's bad books (well, at that point in time) - and both of them are willing to do whatever is required in order to ensure that good prevails.

Plus, I like the camaraderie they develop. I'm a big Giles and Faith fan (whether that be shipped or gen - though I love gen the most!) =)

I'm not the hugest fan of Robin, although that could just be because I didn't care for season 7 and he appeared then - I suspect, had he appeared a few series earlier, I would have really loved him as a character.

Though I could get behind a little Faith/Kennedy....