I've always requested 50's, fourth floor.
I've stayed in all areas but the 60's and 90's and 50's is our favourite. It could be because that's the section we were given on our first stay.
This trip (coming November) all I've requested is refurb room, fourth floor.
The refurbishment isn't slated to be completed until May 2018 and if they make it within that timeframe I'll be amazed. They don't seem to be in much of a hurry to have these rooms completed.