Funny, I just wrote a post about Litecoin, asking why the adoption rate doesn't seem higher. It has a lot going for it. I bought in yesterday at the bottom of the valley and rose up 30% today. If the past charts say anything (which doesn't necessarily dictate the future), I'd expect it to get pump and dumped. I'd prefer it just to go up and stay, but we'll see!

As for other coins of interest, I really like STRAT in terms of being a project, it uses C# and upcoming Java API so the existing developer pool in the world is going to be massive.