Bm!? No way! With B, D, E, G and A in the Bm scale, you get pedal-friendly open notes in every string belonging to the key! OK, wait a minute... you're kidding and I didn't get it, right? :-)
Depends on what you mean by "easy". For a jazzer, c# and eb should actually be easier, because the lack of open chords means you stick with moveable chords. Open chords aren't movable, movable chords aren't open.