Let's go with SMEET.
I think it will depend on how much SMTs will rely on Steem reward pool to keep their incentives/finances going. Those that can offer incentives and operate their finances without relying on Steem reward pool probably will be the most successful.
Very good point. SMTs should be seen as a quick startup to your own token, not as a dependency. Any service that can develop its own use case & internal economy for their custom token will be light years ahead of the rest in terms of real value.