Epidemic will be stronger off the spot, but maybe too strong with your revs, but maybe not with your speed...
I personally would go with the Vibe, because of the pricepoint, and that it will be a less condition specific piece. I think you will find it to be the more useable of the two day in day out.
You can pretty much read nothing but praise about every Vibe ever made... they are awesome.
Looking for any 14lb Hammers, particularly older oddball stuff.
So if you have a 14lb Diesel or Vicious or Blade laying around shoot me a PM