I've seen more game of Radulov then O'Sullivan, but Patrik impress me a lot, and would be good..
But imo, Radulov is better then O'Sullivan.
Alex made 61 goals, 91 assists, 152 points in 62 games.
O'Sullivan is may be better this year, because he got AHL experience, his first year in AHL with 47 goals and 93 points, but he was on a team who guys got a lot of experience and help him a lot for his points,
Its not even complicate, Radulov this year in LHJMQ remember me Sidney Crosby. Alex will be a great leader, after the lost against Moncton in Final of the LHJMQ, Quebec was getting the "lucky" chance to get a spot in the Memorial Cup because Moncton was already host of the tournament. Alex was incredible playoffs with 55 points in 23 games, and they reach the Final of the Memorial Cup, to beat up Moncton this time..
Radulov > O'Sullivan
I think if he play with Nashville this year, if he's centering by Legwand or Arnott or Sullivan he can do great stuff. Official !