Batteries for using AltSmoke "The BB" at 6v

[drewbalicious]

I've been vaping for about a year now but I still consider myself a noob in many regards. So my question is as the title states. Does anyone have any recommendations on what batteries are the best for using The BB at 6v? Avid Vaper has 3 selections for cr2's I was just wondering if there was really a difference.

And yes I know AltSmoke severely frowns upon using their devices at 6v but I would just like an education for future reference if I do decide to go the 6v route with a BB.

Thanks in advance for any tips, tricks or pointers.