Ok so some generals tips on UU.
- All playstyles are viable, stall is cool (as DA can attest to), bulky offense is generally the norm. You have to hit hard but also have something to fall back on incase things go badly. Snorlax/Slowbro/Nido is a solid core for example, they can also hit pretty hard.
- It's very balanced and reminiscent of DP OU in some respects, I don't have an intro perse but simply try and see what works and what doesn't. It's quite a forgiving metagame.
-FWG core is a basic strategy but I find it effective if you're not too sure on what to put on your team. Victini/Shaymin/Kingdra is nice.
Here's a nice guide to improve on Smogon:
http://www.smogon.com/smog/issue26/uu_201
And this tier list is more fleshed out then ours. (Simply stacking some S/A/B rank Pokes with good synergy/team coordination will get you a decent team):
http://www.smogon.com/forums/showthread.php?t=3474024
Honestly it comes down to a little practice and getting to know the metagame. It will be different but our good ol' S&M vets seem to like it. It's not perfect but you don't get more balanced then this in Gen V rofl