Thanks Mia for the advice. Upon further review, it does appear that I would "catch up" to the 25k bonus points on PPE in about 5 months. I'm pretty sure I can hit the max $1,000 rebate on the DE card which would translate into 100,000 points in a year's time. If I were to use the PPE card for these everyday expenses (2 pts/ $1 spent) I would earn approx 1800-2000 points / month. I'd be lucky to hit 50k points overall for a year using this card. If I happen purchase a flight or two, then I might come close to the 100k points that I would earn with the DE card.
DE card is best for us. Just thought I would share.

BTW, anyone know if I can combine wife's points and my points on TY network or do they have to remain separate?