I'm thinking long-term here (next 5 years), which coins do you think will still be very strong and which ones do you think will fall apart?
I like Ethereum and think they have a lot going for them over the next few years but I'm not sold on Ripple, they're centralized and it seems like everything they do goes against the goal of cryptocurrency so I think eventually people will desert them.
What does everyone else think, which coins will be good/bad in 5 years?
IMO.
I think in 5 years
Bitcoin will become government controlled due to their insane energy requirements which is their greatest weakness.
Ethereum blockchain will grow so massive , no one will want to store a full node, and eventually this kills Eth and all of it's tokens in 1 shot.
Bitcoin Cash will suffer the same fate as eth, because the dummies added tokens to their blockchain.

Ripple will still be here, but they are centralized posers, so no one cares.
5 years or 50 years, ZEITCOIN will still be running as it ultra low inflation and energy efficiently allows it to survive and thrive where others fail.