Leave sbp or switch to lbp

I'm going to put 15 inch rims on my Demon. Should I buy the small bolt pattern 15 inch rally wheels, or should I switch to large bolt pattern. I could use large bolt pattern rally wheels. It would not take much to do, my disc brake set up will accept either large or small. I would have to either buy new axles or have my existing welded and drilled. Just wondering your ideas.

Thanks
Brian