depends on why you're asking I guess: technically speaking or in terms of a good investment or both?
go for monero, it is the best coin, privacy is the main objective when it launches, monero is command of bit, someone with privacy issues get Monero.
I agree as stated by John McAfee on a CNBC interview, he has answered Dimon about the term he used for bitcoin as a fraud and being used for illegal trades. And McAfee did mentioned that bitcoin is not being considered anymore in the dark market (but I doubt this) and he has mentioned that Monero is the new coin that was being used for anonymous trades, this is the main focus of monero.