Hi Badboyace84
As Rejoice has already stated, Black is more expensive because it is more in demand; your choice is dependant on a few factors; if you can give a little more information it will make it easier for people to offer their personal advice:
I.e. How many cigarettes, cigars etc you currently smoke, how much you currently spend, how much you want to spend (initial outlay, maintenance etc).
Flavours are not a problem, whaever you decide upon, the choice is vitually unlimited, as long as the suppliers have stock!
As far as the evo goes, I still prefer the longer battery for the longer life before recharging.
All the best for whatever you decide upon. You have come to the right place at the right time and will hopefully get some great advice to avoid making some potentially costly mistakes.