I did one a few years ago that I hand quilted ( A meander with star since there were stars appliqued on it ). But you could also do some of the "rounds" of the log cabin, or the logs... If you machine quilt, a meaner would look fine. Depending on how you arrange your log cabin, you may be able to look at the dark and light sides and come up with something.
I know... that was as clear as mud... I struggle with how to quilt things, too. It become such a personal decision and how you want things to look...