Of many ICOs happening everyday, most of them just a scam, the most successful ICOs were of established services or best new startup concepts.
In my opinion Tezos was the most successful ICO and betking.io too will become one of the largest ICO ever.
If you mentioned betking like casino ico do you think that bitdice ico can make good results too? Both are casinos with good results in the past, both have big plans for the future and in both casinos we will see new games and different updates and upgrades.
One year ago:
#bitcoin = $580 (up 7x)
#ether = $11 (up 27x)
#ripple = $0.006 (up 25x)
#litecoin = $3.60 (up 13x)
#dash = $13 (up 22x)
OP probably wish to know next big thing in ICO world, I shared some nice message from one telegram group, as you can see some coins are already in their way up, others will have to do a lot of work to break trough and which ico is the next big thing we will see. I also think that casino coins will make something more, kick maybe. And for sure coins from my list will rise more.