I am currently hand quilting a log cabin - and it has been quite a mission :) The design I selected cross too many seams.
If I was going hand quilt another log cabin, I would do a simple design - and just quilt a straight line through the middle of each block (away from those pesky seams). :)
Your quilt is going to be absolutely beautiful when completed. Love to hear an update on what you decide to do, and of course a photo when finished. :)