All those Halsin apologisers: Would you still love his performance and his character, if he were a gnome or a halfling or is his 'personality' his buff body?
Please don't make sweeping assumptions like this. I'm asexual. Plenty of Halsin fans love him for reasons which have nothing to do with sexual attraction.
But be honest, most of them - and of the Astarion fan crowd, love him, because he is a pretty elf. What I want to say with this is: if he weren't pretty, no one would care. Dave would still be a decent VA, but he would never have gotten that recognition. No one outside the EA player were talking about Halsin before the infamous bear sex scene in the PfH - and no one would have looked at him twice, if he were a halfling, dwarf, dragonborn or halforc.
Look at what most Halsin threads are about: Sex, sex and more sex.
I know, that you are different and I appreciate it, but the sad truth is, he is mostly a sex symbol (for most fans) or an annoyance (for people like me, who got the creepy banter), not a deep character for most people.