It is projected to be slightly faster than Envoy's. The only way you'll know if it is faster or not is when you're sitting in the seat over at AA.

My advice is to avoid commuting. The schedules at Envoy and PDT are not great right now, and if you lived at home in DFW and drove to work, it would mitigate the terribleness. Commuting to a bad schedule is rough. Of course there is no guarantee you'd get DFW at ENY right off the bat, but as long as you get a 145 slot (which there will be no shortage of) you will be able to bid back to DFW at a fairly early opportunity.

If you lived near PHL, I would be saying the same thing but more in favor of PDT. If you had to commute to either airline, I would probably give PDT the slight nod right now, as well. Living at home makes a HUUUUGE difference.