Hate for me. The way she says "Uncle Quayle, you're oka-a-a-a-ay" in that awful quavering voice just makes me want to beat her to death with one of her own severed wings.
True, I've taken her once or twice for the romance but I find her irritating (plus she's mean to Jaheira, who although not my favourite
NPC, is still a longtime and faithful companion, and recently bereaved, for God's sake).
Sarevok is definitely my favourite once you get to
ToB - such a jolly chap, always laughing.
(Oh and he's awesome, obviously). His hamster dialogue with Minsc always makes me laugh.
Minsc...well, Minsc
is BG2...though I must admit I don't always take him depending on what sort of party I'm going for (specifically, parties that include Edwin...who is another of my favourites...)
And of course Eddie, who is very entertaining, but also the most kick-ass mage in the game. His romance mod is definitely one I will be trying. Can't wait to see what happens with the whole sex change thing.
I do have a soft spot for Val. He's rather underwritten but I like the fact he's so non-judgemental, plus he's very handy with it.
I also like Jan. I often used to take him instead of Imoen though these days I find myself taking Imoen every time as she's pretty much fundamental to the story, so it seems more wrong not to. I used to hate her but she's grown on me a lot.
Keldorn I like as a character but I feel guilty from taking him away from his family, so most games I'll pick him up, take him straight home and leave him with the missus. I'm nice like that. He does have his amusing moments mind...especially his dialogue with Imoen in
ToB.
I'm trying Cernd for the first time (despite god knows how many play throughs now) currently and he's a bit dull to be honest, but he does have some funny dialogues with Edwina. Worth it just to see those.
As for dislikes...Aerie obviously. Not keen on Anomen either. Speaking as a woman, there's no way I'd put up with his flowery dialogues and pomposity long enough to see his more interesting side (though he's a better cleric than Aerie and he's not that bad to have around really, especially when Jan starts taking the mick). The one character I just can't bring myself to like, even though he's actually pretty awesome, is Korgan. I just don't find him likeable, though I've taken him when playing through with an evil party. I know some people love him but he's not for me, really.