Re: Pine Creek Gorge
By the Pine Creek Trail do you mean the bike trail? It is a really great bike trail, with a level gradient and great scenery. It's very popular with bikers, and I see people day hiking on it, and using it for fishing access to Pine Creek. But I've never seen anyone doing a backpacking trip on it. I suppose you could though.
I've only done short walks on parts of the West Rim Trail, but it's very nice up there, with many great views of the canyon. Some of the best scenery in PA, IMHO. If you want to do a real hiking / backpacking trip, I'd recommend that
Cedar Run Inn would be a nice "treat", to stay at and have a meal, on your last evening, a splurge after all that hiking.
Look at the Tioga State Forest map. It shows the trail. There is some real hiking involved. There is a lot of elevation gain from the valley up to the top.