No, not from an enemy alliance... the guy who thinks he's all that and a bag of chips...you all know "that guy" in your guild/ alliance... well, when,if, maybe?
As stratforge mentioned, roll a character in a different alliance and you will be able to get it up to max level very fast next patch, perhaps 7-8 hours or so if you use buffs. Currently this is the best way to practice with friends and improve.
Or have your friend log on to PTS with you and make template characters.