PA pretty much blows. There are some decent places here and there. Amish country (Lancaster) may be interesting for him. There's a mini-Niagra Falls which is pretty cool in Eastern PA. Like that. But yeah, it's pretty meh.
Lived all over Ohio on my mission and then in Missouri around a lot of Amish. The Amish in Missouri were much more liberal.
Regarding Erie, maybe not a fun place to visit but not a bad town. Gave consideration to moving there for school.