I first became interested in Anoncoin because of Zerocoin. When that never arrived I became more interested in CryptoNote. Of the existing CryptoNote coins I think Boolberry is most advanced in terms of scaling and mixin issues.

If Zerocash arrives next year and all trust issues are resolved then that may become the hottest coin. Boolberry is the best anonymous coin today

https://twitter.com/matthew_d_green/status/648221218773049344
"A few people have asked about Zerocash. I've been keeping quiet about this because we're working hard, not because it's been dropped."