It's strange that there are other pokes similar to ttar(swampert, metagross in particular) yet none of them ever use a scarf. I think people are too hard on psychic typing. It's weak to scizor, but if it can get past scizor(generally with water attacks) then there is very little stopping the typing except... scarftar.
As I agree (a bit) with Metagross, however Swampert as a Scarfer... is strange idea. Not that it doesn't have power (as 110 base attack isn't bad), however it's much better defensive pokemon anyway. I think that Tyranitar is the best choice here as he has good special bulk even without investment and he revenge kills a lot of mons, unlike Metagross, which needs to work with much worse STAB combination. Also if you use Meteor Mash and you face Magnezone, say good bye to your Metagross. And unfortunately Metagross with Scarf can't OHKO Latias with Meteor Mash (also his Scarf Pursuit is weak) unlike TTar with Crunch/Pursuit making him worse Latias check.
Thanks Doug. I'm a little surprised that Scizor usage has dipped down. Perhaps people are growing tired of it? And I'd be willing to bet the rise in Tyranitar is related to the Scizor usage. Maybe he has a bit more room to DD?
I think ironically that TTar usage rise makes Scizor a bit worse. Like Gengar, Tyranitar also adapted almost perfectly to Scizor-like metagame. Scizor at best is only TTar check and at best unreliable one. CB Stone Edge OHKoes 248 HP Scizor with SR up, Bait Tyranitar is great Scizor lure. And even if Scizor switches on Dragon Dance, Babiri Berry DDTar may easily finish it of, while surviving Bullet Punch. Also every single member of OU top10 may take it on and OHKO it back (or bait it). So yeah, I think that drop in Scizor usage isn't that surprising.
But yeah, I guess this month statistics are really interesting ;).
a) Tyranitar at 2nd place. I think that you may start calling Sandstorm common weather condition (to help defend Salamence OU status). Also Scarf TTar is nothing surprising, as I saw more then few of them. Also Latias is annoying enough to consider Scarf TTar.
b) Uxie at 50th - If you check RMT section, it's not surprising. Uxie is much more popular right now, mostly as a lead or mid-game dual screener, as it does this job really well. Also unlike Cresselia it has better supporting options to use. However I don't expect it in OU.
c) I like those changes in top10 OU. Swampert and Gengar in top10 and Infernape + Lucario out. Quite surprising, and I think it shows that offense is a bit less popular. However, I think that dropping usage of Blissey helps Gengar alot - as Gengar deals with top10 right now really well and he doesn't need to bother with Blissey as much as in the past.
d) Dragonite goes down. I guess that ExtremeSpeed hype goes down. Nothing surprising.
e) Mewtwo is 2nd right now. Yeah, I love this guy (especially defensive sets, I can't imagine my Ubers teams without them, as they deal with offensive behemoths and stall at once. Too good to pass up.). 4% isn't that huge difference (however it's not small either) and I think in few months we may expect Mewtwo being Ubers king ;).
f) Uxie 9th in UU - As I expected - as a lead it's still unique enough to use it over Cresselia. However it may drop, but I don't think as much as some people expect.
g) Scyther 37th place - If I'm not mistaken Scyther right now is UU. Heck, it shows how much Cresselia affects usage of some forgotten earlier pokemon. Scyther is perfect example ;).
h) Absol 23rd - Well, I expected it a bit higher. A bit unrieliable, however I think it's still solid Cresselia check (just watch out on speedy Cresselia versions with Signal beam). Also STAB Sucker Punch helps alot against Porygon-Z. I think I'll be surprised not seeing it in UU top20 soon.
Thanks as always for statistics Doug ;). Good job dude :D.