ixCoin. 


Only 18 more months of mining to go and then there should be a massive deflationary cycle for the coin which should hoefully make the price run hard and fast.

Of course there is one caveat:  nobody knows what happens to a coin once there's no more coins to mine.

I am watching quark as that coin is set to hit terminal output in about 4 months.  Although it won't be quite the same as quark will have 1 million coins per year each and every year but it should be a good test coin to watch.