I like Neo and Nano. They have different functions, but both are great in what they were created for. Neo have an amazing tech and will be very successful for new ICOs, especially having great support from Asian communities.
Nano is great payment system with instant transactions and zero fees. I'm looking forward to have a Nano credit card in my pocket for paying in my daily life.
NANO has some great tech, especially exciting that they enable zero fees. The latest Bitgrail exchange hack/scam was a big hit in the short-term view. It seems a class-action suit is on its way:
https://www.coininsider.com/nano-xrb-lawsuit/