Oh and I will add this, I used a limited edition "black out" All-City dropout as my commuter/daily bike for two years through snow, etc and it is still in good shape (though retired in favor of a more old school steel track frame... say what you will but for bombing around town it's fun). The ED coating and attention to detail is much better than the Soma frames I've seen. The only complaint I ever had about that frame was that the integrated tensioner screws constantly bent, but you wouldn't have that problem with a Mr Pink.
I've seen the black Mr Pink frame built up with a Ritchey fork, Force, and such and it looks pretty good.
There's nothing wrong with the Soma frame, of course. Tange Prestige is not a bad tubeset, but it is older. Tange was selling it back in the eigthies and I don't know if it's changed much. There was a famous shootout
between Columbus SL and Prestige back in 87 where the SL won. Zona is newer, but it is targeted at a different market.
Jeff, the man behind much of All-City, has said that the Mr Pink is designed to feel racy
though that is such a weird statement... It doesn't have the shortest wheelbase and the angles are less sharp than I would want, but there you go. I'd hope that the BB30 and Zona make it feel stiffer, but who knows.
None of this may matter. The long and short of this all is that the Mr Pink is probably one of the better choices you could make for a "do it all" bike that won't break the bank.