14 
No Disrespect... and it's not the reason I recently sold my MKII's. 100% of kyusha drifters and wannabe drifters know the MKII. MKII's, though rare in Canada are actually a dime a dozen to me... even in 8J 0. I told you when I bought those wheels that I wasn't entirely excited about it. I was simply lured by a silly cheap price that happened as a result of a poorly categorized auction.
And then I was horribly disappointed to find the tires I wanted were no longer available in 14".
Not that that stopped me from buying another set of 14's. 15's and maybe even 16's are still in hunting. But yes... I've stepped in down a notch in size. I have zero regret right now. Spacers will do work in the rear, and I have something else planned for the front where spacers really mess up scrub radius.