Ethereum is totally different technology. Monero is a big potenital for future. Dash need to time. it's too early for say something. and we can't ignore LTC. Of course other coins isn't trash but They provide service other tech like Ethereum. for ex. We can't compare with Ripple and BTC or ETH. These are tottaly different technology. So when evaluate it we should consider it. We don't know other geneterations what brings.