Both are very commutable. Envoy travel benefits are AA benefits...the same, equal. So you can fly wherever AA flies with the same benefits as an AA pilot. You board ahead of anybody who doesn't work for AAG.

As far as reserve, it's hard to say. I think guys in ORD have been on Reserve longer than the ones in DFW. Either way, moving forward the Reserve time will be very different than what it has been. Feel free to PM me if you have any more questions.