Hey there mmamas,
Yes, I have a baby who prefers to nurse on just the left boob, and a little snacker on the right side.
It hasn't always been this way--he started off loving both, but decided to be a leftie. I actually went without nursing the right side for a while, but seeing that I was still getting some let-down on the right, I caved and subsequently nurse on the right side, too. Not as much of a producer, but he swallows a little. I'm going to end up lopsided once all is said and done, and I look slightly uni-boobed but I guess this is ok--for now.