I have been in both of those rooms. I really like being so close to the stairs and being in the middle of the ship...easy down for shows, easy up for pools. Especially since we were all adults we were headed up to the adult pool area.
If I wanted to avoid the mass of humanity at peak times (all the rooms on deck 6) I just dropped down to deck 5 to walk aft (or wherever).
I really loved that deck 6 forward location...but being that it was my first cruise when we had the room...I've only been able to stay on that side of the ship cause I get turned around when I'm on the other side!