GSMNP, Pisgah NF, or Cherokee NF? (start 7/16)

I'll be in the area (Lake Junaluska, NC) starting the afternoon of July 16. At this point I'm not sure how much time I'll spend. It may be just a couple days (leave Sun morning) or could be as long as a week+ (leave 25th). I want to do a loop of some kind (return to my car). Any recommendations of some decent loops I could make (especially with waterfalls, wildflowers, etc)?

Also looking for a guy or two that wouldn't mind dealing with a newbie who wants to enjoy the country he's walking through and take some pics. I'd assume 10 mpd would be reasonable. I'm handy and learn fast.