End of the day the block times won't matter (because of technology) and as a result it WON'T be a distinguishing factor for a better coin. Maybe try to read up a bit more about what the project's stand for.
Block time will matter for the new generation of financial platforms we're starting to see, like Mastercoin, Colored Coins and Counterparty. I'm already seeing complaints that using the Bitcoin block chain is too slow for an exchange or betting. Orders take ten minutes to place and even longer to execute and confirm. I0coin is a great choice for these platforms because it has the speed and security.
sounds like i0coin could be a good platform for these.