Now now let's cool it a bit here. They got their own reasons for their own tier lists (and I would like to see the actual link to the ruleset since the wiki doesn't have it and I've searched all over) and we got ours
*(lets be honest - our system has a few flaws too. For instance it's extremely difficult to get things unbanned. Another worrisome thing is that it allows for too many differing opinions on the metagame and causes some conflict in the community)* .
A few things (assuming the OP pasted the correct ruleset)
1) " Limiting legendaries to 3 per team?"
He meant that as in "trio legends", not 3 legends per team. By rule 1, you can't use any in the team.
2) I am wondering if they have a "Nintendo Official Ruleset" somewhere listed as an option for battling.
3) Impressions: Rule #3 would obviously be the most familiar to me (it's Ubers!), and Rule #2 would highly resemble our OU metagame pre-suspect testing (Moody/Darkrai/Shaymin-S/Deoxys-A)
4) The Japanese may have a different viewpoint on countering than we do. They may tolerate Garchomp much more than most of us (adding to the fact that Evasion Clause is allowed - which makes it harder to get Garchomp banned).
(I mean, I sure do tolerate Garchomp in OU just fine lol)
5) To the original poster: If you log back on and see this thread (and my post), please give us a link to the Japanese rulesets.