I personally enjoy the ranged classes, such as boomkin or hunters, in World PvP that works perfect having 10 of the same. I use 10 boomkin and love their self-heals and battle rez. I do not play in BGs at all.

You sound like someone a bit hardcore with boxing, like arena quality of player. If so then I'm sure you'd be ganking people just dual boxing. But since most people now are LFR geared and it takes forever to gear our toons that way, you will be heavily outgeared especially in the galleon/sha areas (where its really fun and alot of people join in).

Also from what I understand the world PvP areas are cross realm zones, so the amount of horde/alliance on your server may not matter.