I wouldn’t advise Wharny unless you know where your going, I’ve been riding there over 15 years and I still get folk telling me its shit, you really need some local knowledge to link up a good loop, likewise Sherwood Pines, one extreme to the other there, in comparison the pines is very very lame.
As for the Peaks, I’d do cut gate pass, it’s an out and back route and you will struggle to find any better MTB territory, it was where everyone rode before the trail centres opened, the Peaks is a Mecca for all things outdoors and biking there is second to none ! Unless you take a trip to the Alps or Canada ?
Hopefully some one should be able to hook up with you and show you some trails.
Enjoy