What makes you say Bitshares is more decentralized? What I've seen and read, I can't find anything that would back this up. The amount of PTS that was mined in a week surprised everyone and what I've learned it was/is mostly done by big players. There was only a few days when regular folks could find blocks by themselves.

I'm happy to be proven wrong, but so far I haven't seen anything that would back up the claim that PTS mining would have been better model for the little people who can't invest a lot up front versus Mastercoin's "Exodus August" model, where even small players had an equal possibility to invest.