Well I hold all the ones that I have listed prices for (except stellar, but I will be getting some soon). I tend to stick to top 20. I'm not really big on ICO's, not to say they are bad, a lot of them can make you short term gains, even massive future gains, but I prefer to stick to proven crypto and top 20 is usually a fairly good indicator of the ones that have made it in my opinion. :)

But my favourite has to be Steem, will be building it up for years to come. :)