Besides which, the original topic of this thread was something completely different -- the OP erroneously believed that one can register the SAME credit card for TWO or more RN accounts at the same time, then realized that it isn't possible. (I know it isn't possible from accidentally trying to do that. )

Anyhow, regarding the drifting off-topic portion of this thread: the blather about 2 jetblue points vs. 1 of something else -- well, points from different programs have different values anyhow, even if you try to pin a monetary value on them. The Hilton HHonors Amex, for example, gives you FIVE HHonors points per dollar on restaurant (and other "everyday" type purchases, e.g., grocery stores, gas stations, etc., vs. the "normal" earning of 3 HHonors points/dollar). But HHonors points aren't necessarily equal in value to points in other programs. Still, the 5 HH points/dollar is not a bad deal at all.