Both are blank canvases. Imagine ahead on how you would like to mod it. To me the FB demands color with chrome dripping with it. The Lo's are more old skool with a bit of attitude. Black denim with the brushed alum is what sold me. I remember considering the regular FBs, Luxes, NTs and even a couple tours. Anyways it took me a few months to decide via researching and a ton of custom pics.
I like them both. But I have to admit a certain love for the old school Fat Boy. I also have thought about the denim and brushed look will eventually go out of style. Buy what winds yo clock.