He just seems to be an arrogant blowhard; the other characters are at least interesting but all this guy is a fake a hero; is there anything redeemable about him?
Anomen was like that too, at first.
While I don't find Wyll to be bad with what we have available in the game, I wouldn't consider him similar to Anomen. Anomen is arrogant and condescending yes but he is still trying to understand the people around him and do good in the world. Wyll is going down a much more questionable path and has much more questionable motivations. It's unfair to boil either of them down to "they are irritating because they are prideful".