The Back o' Bennachie is on the northern side of the ridge, and probably is the more rugged side. The Gadie runs there near the village of Oyne,There are 4 car parks around the foot of the hills, one of which is then Back o' Bennachie car park. There's a suitable reminder to remember which car park you left your car in and to return to same!
Have heard both versions of the chorus, the "meal and ale" one also from Geordie Murieson, and it does seem to be the more popular one with current North-East Scotland singers.