You will get trubble with doing quests and entering 5mans as a raid so for lvling this is not a good idea.. For pvp it might be a good thing as you can make a raid and then put icon on all your chars and then enter 5v5 and it will be the same for each match, i found that handy.

But instead of making a raid so that you can over come the lazyness of inviting them.. just make a macro on your main that invite them all. That will cost you 1, yes 1 click more :P And you will get full xp.. be able to do quest and to enter 5mans