Bytecoin (BCN) because of CryptoNote tech, and fair distribution.

Bytecoin is far superior to Monero in every way. And once the GUI wallet is released, among other advances, it will replace Bitcoin as the universally accepted Crytocurrency.
Rumors are that fabled Satoshi Nakamoto is involved in the Bytecoin project to amend the flaws of his first child, Bitcoin. http://bitcoinrewind.com/bytecoin-next-bitcoin/