For an American Pale Ale, I'd stick with American hops.
Saaz is the classic Czech Pilsner hop, Hallertau is a German noble hop. If you use those, you may end up with something between a Pale Ale and a Czech or German Pilsner respectively.
I just had a Azacca SMASH and that was great, so my personal favorite would be an Azacca pale ale.