I really doubt that ZCL can beat BTC, because it won't be developing any more.

ZCL forked with BTC into BTCPrivate,which definitely can be a big threat to BTC.

It beats BTC and other BTC forks in almost every aspect.

Also, it has been one of the biggest gainers in the last week (considering top 100).

It surpassed Verge, ZCash and I believe it'll surpass BTC Gold by the end of the day.

Next one is Monero.

They've got a great team and big plans, plus it's really undervalued.