As I make mostly quilts for beds(twin through queen), my personal preference are rectangular quilts. I like a pillow tuck and a generous drop so rectangular quilts work better for me. Whenever I find a square quilt pattern that I like, I always figure out a way to make it rectangular. I dislike square quilts that much that I'm willing to put in the extra work to make it rectangular. The quilts that I make(twin/full/queen) are not square and neither is your body. I even make rectangular baby quilts.
Go with what you like best--for me, it's rectangular.