Absolutely Siacoin, the team is great, the got a growing community and a working product. The thing they lack is good marketing or marketing at all. If that hits, I see a top 10 space or at least a 1 billion marketcap in the not too distant future. Then there is still the possibility that in the future some big corporates will use the technology, which will push it even further.

I'm hosting with Sia myself and love it - accumulate the coins as long as they are cheap :)