I was doing some stuff on Youtube last night and came across this guy I always thought that Mercurio was the most progressed PvE boxer in Cata. I have never heard him mentioned before but he has downed the following in Cata so far. He is from Taiwan, I know in some parts of the Republic of China WoW release dates are sometimes pushed back possibly making this mans achievements even greater.

Argaloth 10 man Solo, 9 months ago
Alizabal 10 man Solo, 6 months ago
Morchok 10 man Solo, 6 months ago
Yor'sahj the Unsleeping 10 man Solo, 5 months ago

Morchok 25 man LFR Solo, 5 months ago
Hagara the Stormbinder 25 man LFR Solo, 5 months ago
Yor'sahj the Unsleeping 25 man LFR Solo, 5 months ago
Warlord Zon'ozz 25 man LFR Solo, 5 months ago
Ultraxion 25 man LFR Solo, 5 months ago

Alizabal 25 man Normal Solo, 5 months ago
Morchok 25 man Normal Solo, 5 months ago

http://www.youtube.com/user/5boxhk/videos