Precisely my problem with breasts..I pretty much only eat thighs...some, including many women around here, won't eat the dark meat.
So, last time I did em (just a few days ago), I marinaded them for 3 hours in a thin bbq sauce (Rev. Marvins Hot...vinegar, mustard, etc.), pounded them in the sauce while in a plastic bag, and wrapped them in bacon.
Closely monitored my temps till internals got to 160. Put a little baby swiss on top. Excellent, much better than I thought. Still prefer thighs (I really like the boneless skinless thighs prepared the same way), but I guess I can eat the breasts every now and then.