[Krew]

Version 2 looks better and is a bit faster but not all modules work that well as they did on version 1.

[Subliminalz]

Kali linux 2.0 Its cleaner and as another member stated metasploit does indeed load faster. They have just about the same thing both of them It's just really the "looks", but if that's the case v2.0 is better imo.