some more data in favor of Delta.

For comparison purposes, if I want to earn enough miles to fly JFK to LAX/SFO in:

MINT - at a base fare of $400.00 it will take me nearly 60 RT flights to earn enough TB points for a MINT seat.

D1 - at the same base fare of $400.00 I will only need to fly roughly 23 round trips to earn enough skymiles for a D1 seat.

So, who has the better program in this regard? Delta