Yeah... Power pass has blackouts which is what I get. My BFF was only going to be $15 dollars shy or something from an AP with her 3 day ticket so to convinced her to just get an AP just in case... We're going to be using her pass 3 times now so glad I did.
Power pass has blackouts and not as many discounts... Like I don't get food or merch discounts I don't believe, but I do get hotel discounts which is nice. So if you're staying onsite and they still have an APH rate available you might actually save money by getting an annual.
If you do what my brother does he gets one upper annual pass and everyone else gets a lower- he gets food, merch, and hotel discounts and the then olans his trips to go a year later one year and a week earlier the next to get two uses out of it. Then doesn't renew and purchases again a year later. Saves him a boat load Wih a family of 4!(and sometimes 5 or 6)
Oh! And if you're staying offsite and get an APH you'll still be able to get hour early entry! Depends what you value. But it can never hurt if it's the same exact price. Renewal gets a discount so it'd be cheaper and then if for some reason you find a reason to go again.... Hey you have tickets!