Hello :) I would like to help you but you should reconsider some of the things you wrote. I will speak from my own PvP experience in some of the best PvP guilds, so take it as you wish.
Taking PvP seriously can exist without an elitist community but in that case you're looking at guilds that prefer quantity over quality, guilds that will have a lot of members who play all the time but very few who actually know how to play. Those kinds of guilds will rarely do rated bgs, and even if they do, their chances of winning will not be very high.
Elitist guilds are the best for serious WPvP and rated bgs but yes, if you lose, you will have to put up with lots of whining from the GM, cause lets face it, they are elitist cause the leaders are more dedicated to the game than to their real lives. Honor, reputation, loyalty and disappointment are words very often heard in those guilds.
This being said, on alliance right now, you have APKAHA (arcana), good pvp guild but mainly Russian; Pokemonz, which would be a perfect representative of an elitist guild, and something in between would be a CannabisCountryClub, extremely skilled, more relaxed than pokemonz but unfortunately not so active. The rest are not so noticeable. On the other hand, you can always choose nation based guilds, which are social, relaxed and somewhat serious about pvp, but not nearly as good for rated bgs and wpvp. Honestly, I would recommend them until you gear up.
Another thing that is a problem is what you want, considering what you have. PvP guilds have certain requirements, and as it seems you have neither gear nor skill at the moment, all you can offer is a great personality. You said you don't want that kind of a guild but only those kinds of guilds have GOOD pvp. That's the point, having good players makes a good guild. Moreover, you're talking about rated bgs but for rated, you DO need full gear and skill, so you're looking at ,at least, 2-3 months of playing to gear up and many more to skill up.
To sum up, as a beginner, you should adjust your focus. Join social, helpful guild, nation/language based guild that does everything but doesn't have strict requirements. In good guilds,you're expected to be good, so first get good, then join an appropriate guild. As for premades, global premades work just fine, make geared friends who can carry you (or entire bg for that matter) and farm gold, you'll need it, even for arena boosting occasionally. Join a stable, social, helpful guild and look for pvp experience outside of it by dueling, asking question, bg premades, follow guilds in wpvp (even if you are not in a raid you can stick to them). There are ways, take it easy and you'll get there and most importantly, have fun-never stress out over a game.
Cheers, Sugar