the basic breakdown of strengths between them is this:
brocaps:
doubleshot
best fitting stems (other than novatouch incompatibility)
GID
organic sculpting (zombros, stumps, bronads)
way more designs
hotkeys:
VERY accurate lines (yes better than v2s, i've done 'hardcore' macro analysis of both)
modular pieces (yes, people mix and match eyes, mouths, etc)
articulated (for the raven goggles)
extremely easy to get
let's get real. they're both extremely good artisans and you CAN NOT go wrong with either.
so why not both?
also, yes, i'm being extremely nitpicky in my breakdown above.