Ethereum (ETH)
ETH has the greatest potential due to the decentralized smart-contract system coupled with the majority of new coins/tokens being based on the Ethereum blockchain. Sharding, zk-SNARKs, Casper, PoS and Viper will fix many of its current problems. ETH peaked on Jan. 14, 2018 at $1,389 and is currently on sale at $825 and I believe it will be above $2,000 by Q4 2018.
Ambrosus (AMB)
AMB is still in development but has massive upside potential due to the pervasive real world problems they are solving such as fraud in the food supply chain via blockchain based 2nd generation smart sensors, drastically increased transparency into where and how our food and pharmaceuticals are produced, and they have an incredibly solid team behind them. After peaking at $1.72 on Jan. 6th, 2018 they are currently undervalued at $0.55. I think they will hold above the $3-5 range in Q4 2018.
Binance Coin (BNB)
This is the official coin for Binance, the #1 cryptocurrency exchange on the planet. After peaking at $24.46 on Jan. 11th, 2018 they are currently selling for $8.55. I think they will hold steady within the $40-50 range by Q3 2018.
Disclaimer: I am not a registered financial advisor. This does not constitute financial advice in any form. I have long positions in AMB and ETH.