If you want relaxing, which to me means chill, not crazy loud...not crazy hustle, but slow and easy. Grand Floridian is super chill IMO...can be snobby...but very relaxed. Contemporary is cool, but very loud as soon as you open your tower room door...love the hotel, but it is not for relaxing...Poly currently again IMO is kinda stressful just getting a drink, or food or housekeeping...will probably change by 2023.
If split stay...then I go to Old Key West or Saratoga. Again they are both so laid back and relaxing.
How come nobody every recommends All-Stars for relaxation?
Also they may have a new relaxation hotel by 2023..who knows!!! You have a long time to plan and research...so by the time your vacation comes you will need relaxation!!