When I got my AP in 2003, only choice were premier or preferred
At the time the preferred had the 15% discounts so went with that
I renew yearly
Some years back and power pass was an AP choice, the discount values changed
Preferred was dropped to a 10% discount
Even with the rate of that, I still come out ahead when I figure the base cost of the premier ap
Just depends on the person which ap will give more value for their needs
With me doing the renewals each year, so have a discounted rate for that cost
For my stays of 7 days and longer for specific months, the SMSM allows me a 35% hotel discount
That works in my favor and beats the ap rate