I just came off the AT. You didn't say when your AT hikes happen. In PA in June/July you will want a bug net to keep the cloud of nats at bay. During the end of July until it gets cold up the line, you will experience an on-slot of mosquitoes attacking you starting in NJ. You will want a half an ounce of 100% deet per day. I really like my Evernew .9L wide titanium pot with a TrailDesigns SideWinder cone and a 12/10 alcohol stove and a GramCracker Esbit stove. If your hiking the AT by getting resupplied by mail package, by all means go with Esbit and save yourself the worry of where you are getting your fuel. Back to the bugs: you are going to want a tent with bug netting come July. And back to Pennsylvania: the trail in the state is full of evil pointy rocks that you will be stepping on every step all day long. Lose the running shoes and get a pair of trail shoes with stiffer soles.
My 2 cents