from a partier's point of view, I'd rather be in the lounge. I like the layout more...
But from a promoter's point of view, I'd rather have the breaks in the main room. Since the breaks room always has more people that the house room, it makes sense to have it be the first room. It looks kinda bad when people first arrive walking past an empty main room. So, for this reason, I'd say keep the breaks in the main room. If the house starts attracting more people, then I say change it up.
But yeah... I'm with CC on this one. If you ever have an out of town headliner come in, you best be using the main room for breaks!