Schluter

It depends on the overall style of the bathroom. Pencil or chair rail tile can be good for a traditional/transitional look. And Schluter edging lends nicely to a more modern look.

We recently encountered this very same issue on a project. I agree with the above comment from the Kitchen & Bath Galleria, it really depends on the look you are going for. Our project had a transitional look so the SBN (bull-nose edged) was the way to go for our client. Something also to keep in mind is that Schluter is a solid color as well, so in choosing that option you still get a "solid-colored" finish, but you are also adding another grout line between the tile and the Schluter.