I must admit, if I played a part in the story that no one liked and later found out that I was essentially being used as a Mary Sue, I would kind of feel violated. Wes feels less like a character and more like some guy's self-indulging fantasy who thinks he can do no wrong. Plus, Wesley was once planned to be a girl for reasons I can totally relate to (How many promising sons are there in fiction?). Unfortunately Gene said no because dang it, Wesley ain't a girl's name!
But despite that, I can understand how Wesley can appeal to others, so to each their own. Just be thankful that Picard didn't end up becoming his twist ending father.