I prefer the Bm to the major - it works well in both G and D. If you're really clever, you can actually play tunes in Bm. Think of a tune like Tripping Upstairs (in D). It really does not work to have a Bmaj chord in the B music. Try this chord sequence for Michael Turner's Waltz: G Bm C G Em Bm C/G D/G    C D Bm Em C G Bm D/G.

Another tip, if you're not taking out the thirds on all the bass chords, is just to take out the 3rd on the A chord. This allows you to play in A minor, using mainly the G row, and to my mind is a much better option than the oft-quoted fudge of playing an A bass against a C chord to give the impression of an A minor.

Enjoy

Tradsinger