I agree that Patrick Sharp is not top 50, but if you want to talk stats, here are his past 3 seasons:
07/08 - 36g, 62pts
08/09 - 26g, 44pts (61 games = 35g, 59pts over 82 games)
09/10 - 25g, 66pts
09/10 playoffs = 11g, 22pts (22 games).
Bolland, Hudler and Filppula have not put up stats anywhere near that, what makes them better?
Sharp plays about 5 more minutes at ES than Hudler, and about 1-2 more than Flip. Sharp is a decent defensive player, while Flip and Bolland are notably better and Hudler is above average.
If Hudler played in Sharp's spot and with his minutes, he'd be an 80 point player. Flip and Bolland are two of the league's better two-way players. Sharp is not far behind, but he's fourth out of the group.