bevinator: Years ago, I was part of the Anomen Hate Club too. The thing is, Anomen is a try-hard. And that bothered me. At first.
However, once I actually paid attention to his dialog and his romance stuff, I realized how wonderfully complex a character he actually is. He had a terrible childhood and an abusive father, he's wracked with guilt over the death of his sister, and his desire to do good and uphold justice is at odds with his own darker nature. He is desperate both to prove himself (to the Order, to his father, to you, etc.) and also to overcome himself, to become the person he WANTS to be rather than the person he IS. But, like many people, he's not entirely sure what he really wants to be. He is desperate for guidance, but he doesn't really listen to Keldorn (even though he should, all of Keldorn's advice to him is very good) because Keldorn is a father-type figure, so that triggers a whole stack of Anomen's issues. Anomen is one of the few genuinely dynamic characters in the series; quite a bit of his dialog changes inside the romance and out depending on your influence.
He's a well-written and deep character, and well worth having in your party. If you can get over his accent, you should definitely give him a try, even if you aren't romancing him. I think he's probably the best-written NPC from any Bioware game ever. If you're on the fence, it doesn't hurt that he's also one of the most mechanically effective characters in the series. Anomen is an incredible combat powerhouse for almost the entire game.
Anomen's is not as "fun" as Jan, Edwin, or Korgan, but he's definitely deeper.
And goading him into taking revenge against his sister's alledged killer is very satisfactory if you're playing an evil character. And I really liked the subtlety of not really knowing if that merchant really
the killer, a subtlety I suspect is entirely missing from newer BioWare games.