I bought Anthony Millers Triple Threat Wallet at the beginning of October, just switched over to using it everyday a week ago. It's not everything I like in a regular wallet, but the CTW aspect is easy to load (palm or no-palm) and it has a second insert that can be taken out and used as CTW or a peek device.
I don't own (nor have I held) any other wallets so I can't compare them. The credit card 'slots' are more like cut slits in the leather but it holds them just the same. I like the wallet I just wore out better, but it was designed specifically to be a wallet, not a magic trick that can also double as a day-to-day wallet.
The Mercury Wallet looks pretty cool, I might have to see if my local brick and mortar carries it so I can check it out.
EDIT:: You might try PMing Jamie D. Grant (or emailing him) I'm pretty sure he owns a lot of magic wallets and might be able to help you decide.