I had a local friend run Ghost/Fenn against me on VASSAL last night, and despite his total unfamiliarity with the list, I eked out a win -- on points, at time -- by the skin of my teeth. I cannot see a way to beat it with my list -- with which I am undefeated in 20 games -- against a player experienced enough with it to deny me a route to Fenn.
That list -- specifically, Steven Gonzalez' version, which IMO is the strongest version and genius list-building on par with Berling -- is unreal strong. The synergies are just rock solid, on top of incredibly powerful cards (Fenn, TLT, EU, Ghost/Phantom).
I'm not sure there is any list that's a favorite against it (that won't get 80/20ed against the rest of the field). Holy cow.