Just to answer your original question, I believe you'd be better off with two identical 2X10 cabs rather than a 2X10 and a 1X15. Which 2X10 cabs you finally use is of course up to you, but I can certainly recommend Barefaced. One Retro Two10 may be all you need anyway. Products from Bergantino, Aguilar and Markbass are also recommended. You really need to try a few, as Bill says.
There is a lot of love on this forum for a modular system of two 1X12 cabs. There are few situations where two 1X12s won't be more than adequate, depending on venue and which amp you're using of course.