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Ahh yes, I remember the competitive battling scene. I don't know much about the newest generation in competitive battling, since I usually go out on a whim and just train to what I think suits the Pokemon, but I know Excadrill and Conkeldurr are pretty much awesome in the metagame, being the new offensive sweeper/Machamp of the game. You can check out the Strategies and Movesets area, which would probably be your best bet when it comes to learning the newest metagame, and stuff. :)
So anyway, welcome to the community, and make sure you check out that link that I gave you. We have team rating stuff, warstorys and such, and even our own Pokemon Online server, so you can just go over there if yuo wanna get some practice in that side of things. :)
Oh man, competitive battling is one of the things I could never do. Welcome to PC, though, and I hope you have fun with it! And then once you're the top battler come teach me how okay? :D