I have a hunch that Chen Long will dominate badminton for 5 years after LD retires. Right now, Chen Long is probably not as good as LD (although Chen Long beat LD in 2009), but Chen Long is one of the few who can put up a real fight with LD. LD now is head and shoulder above the rest player. LCW is probably the second, but Chen Jin and Chen Long are close. After those 4, there are Gade, TAUfic, Bao Chun Lai, a Japanese young player(who lost to LCW in the final of AE 2010), and bunch of young Chinese players.