I know there is alot of negativity against Ripple. Many people claim its not really an alt-coin because its pre-mined essentially and way too centralized.

But its actually a pretty useful coin. I've used it in the past when I had to quickly transfer between exchanges and never had issues. Its good because most exchanges support it. However for some reason many gambling sites that list alt coins don't use ripple, never really understood it.

I think most of the top 10 alts should be used with most gambling sites.