As long as you are closer to the center aisle (as opposed to the the wall) R or L is fine....but I'd almost always RATHER sit in the front Mezz -- particularly the center sections.
For Dolly we sat front row mezz, house R....about 2/3 down the road (so closer to the end then the middle) and didn't miss a thing.
If we're not having fun, then why are we doing it?
These are DISCUSSION boards, not mutual admiration boards. Discussion only occurs when we are willing to hear what others are thinking, regardless of whether it is alignment to our own thoughts.