I would go for the Kato 7.
Not just because I am a fan of Ghost bikes in general, but because if you look at the specs (as you said), the Ghost comes out on top.
Drivetrain;
Ghost; Mixture of XT (Rear Derailleur) / SL (Shifters) and Deore (Front Deraulleur) (which will be more or less bomb proof)
Pitch; Mixture of Specialized stuff, Sun Race, SRAM and Shimano (talk about building to a price)
Brakes
Ghost; Shimano 359 disk 180fr/160rr
Pitch; Tektro Gemini Front and Rear
Gearing;
Ghost; Deore triple chain set (40/30/22) 11-36 Shimano cassette (this will climb anything, but a triple is a little less "fashionable" these days...)
Pitch; Specialized Stout Double Chain set (36/22) 11-36 Sun Race cassette. -_- Pressed steel chain rings = cheap and nasty.
Tyres;
Ghost; Schwalbe Smart Sam 2,25 (Not bad at all, not great, but not bad)
Pitch; Spec Ground Control Sport 2,1 (narrow and according to reviews not that grippy either)
To me, the Pitch is the bike you buy if you have no idea about cycling and want to have the safety that comes from buying a bike from a big brand (i.e. are going to get fleeced nut at least its a INSERT NAME HERE) It is the MTB equivalent of the Toyota Auris / Corolla.
The Ghost has better spec and to me is the bike you buy if you are new to MTB, but have done some research and know what makes a half way decent bike on a budget.
Oh, and the Kato 7 looks really nice in the Red/Dark red colour combo.