Waldorf Astoria Chicago vs. Fairmont Chicago - thoughts?

I redeemed 70,000 HH pts , and I currently have a reservation for 1 night at the WA Chicago next month to celebrate my birthday. I was considering cancelling the reservation and booking one at the Fairmont instead since the AAA rate is very reasonable. Any thoughts on how those two properties compare? FWIW, I have gold status with Hilton.

Thanks!