[Team Rocket Elite]

Based on the percentages for all the moves, items, etc. shown, you can sort of guess how many times each Pokemon is used. There are actually multiple possible usage number that can fit but I think going with the minimum possible gives the best picture.

We don't know the total number of teams in the stats so each usage number can only be compared to the usage numbers from the same tournament.

[Korean Tournament Name]
1 - Tyranitar (6 Uses)
2 - Hitmontop (4 Uses)
3 - Metagross (4 Uses)
4 - Latias (3 Uses)
5 - Garchomp (3 Uses)
6 - Rotom (3 Uses)
7 - Cresselia (3 Uses)
8 - Ferrothorn (3 Uses)
9 - Chandelure (3 Uses)
10 - Thundurus (3 Uses)

2012 Spring Friendly
1 - Hitmontop (81 Uses)
2 - Metagross (75 Uses)
3 - Garchomp (72 Uses)
4 - Tyranitar (69 Uses)
5 - Zapdos (67 Uses)
6 - Scizor (63 Uses)
7 - Politoed (57 Uses)
8 - Rotom (57 Uses)
9 - Cresselia (57 Uses)
10 - Chandelure (57 Uses)

Japan Cup 2012 Spring
1 - Metagross (529 Uses)
2 - Tyranitar (426 Uses)
3 - Hitmontop (361 Uses)
4 - Cresselia (342 Uses)
5 - Rotom (310 Uses)
6 - Salamence (276 Uses)
7 - Chandelure (264 Uses)
8 - Gastrodon (234 Uses)
9 - Politoed (198 Uses)
10 - Thundurus (177 Uses)

2012 International Challenge
1 - Metagross (392 Uses)
2 - Tyranitar (289 Uses)
3 - Hitmontop (280 Uses)
4 - Rotom (279 Uses)
5 - Chandelure (234 Uses)
6 - Cresselia (230 Uses)
7 - Politoed (183 Uses)
8 - Salamence (171 Uses)
9 - Gastrodon (167 Uses)
10 - Abomasnow (160 Uses)