Monero, Ethereum, Iota.... pretty much anything is better than the current shambles that is Bitcoin.
Not too keen on Dash and Litecoin as they don't really bring anything unique to the table....but are indeed functional as currency.
I also love Steem cos it has an obvious use case and it's superfast and with no fees....though maybe its economics need to be ironed out to make it a contender for the top spots .