Looking for some opinions on the relative value of these points compared to each other. Particularly in regards to redeeming for airfare.

Does 500,000 points get you roughly the same value for each card or is one card/program better? If one card has a better value for redemption, would you take a lower earning rate on that card to use their program?

I have some ongoing high spending coming up and am trying to decide which card to put it on. I know the categories of each card earn differently, I just trying to figure out the earned points value.

I'm comparing the Amex Business Platinum vs the Chase Ink Business Preferred.