I actually like the current system of proportional. I also don't poolhop, but I turn it off when there's a thunderstorm or power outage. I really find the stats useful, and since you could check that the time percentage I spend on this pool is >90% uptime, I think that should be tracked by the server, and full stats should be given to me and others with similar uptimes. If anyone abuses that information to go below 90% uptime, then any relevant stats can be removed again.
I really don't like ever taking stats down - hiding stats except for trusted miners doesn't really solve the root problem. We're doing it for the time being just to reduce hopping in the short term.
But I think you'll be happy with ESMPPS - it has a very low payout variance, much lower than with proportional. In other words, short vs. long rounds won't affect your payouts negatively except in the case of very long bad luck streaks.