Probably the best Cheesecake artist there is at the moment. He's the 'Good Girl' artist that all others aspire to be. I first came across Adams work on Maze Agency and then his Justice League run and even back then you could see that there was something special about his work.
He just went from strenght to strenght and I avidly started to buy anything Hughes. I would find myself buying pure crap just coz a Hughes drawing graced the cover of it.
For me, he's right up there with Mucha and Vargas.