I suffer from quilting ADD, sometimes it can be such a pain, lol.
I actually don't cut all my pieces at one time, I found out that my cutting accuracy suffers if I sit down and cut everything out all at once. So, I'll cut for about half the quilt, work on that until I run out of pieces, take a break, then cut down for the rest of the quilt. If it's applique, though, I do tend to cut for only a couple blocks ahead of where I'm at, work that, cut down for a couple more blocks, etc.
I think as long as the quilt gets finished, there's no real right or wrong way to do it.