I started a similar thread in the FT Hyatt Forum where people can list their Confirmed Suite upgrades and it seems to be a useful and popular thread. Starting today there seems to be a need for a thread like this in the SPG Forum as well, so I am starting a new thread on this so people can find out the possible Suite/Room upgrades for various hotels. And not only will this be useful for Confirmed Suite upgrades, but it will also be quite useful for 25 night Plats to come to and see what type of "time-of-checkin" upgrades they are eligible for.

I will post a couple examples over the next couple hours, so feel free to follow the example for other hotels. Ideally we could all post screenshots of what we are offered at each hotel. I know that takes a bit of time/hassle to upload pics, so alternatively if you want to just type in the base room & size, and then the upgrade room/Suite options (& sizes), that would work as well. I think room sizes are probably very important to add since all rooms seem to list the room size, and that tell you how big your potential Suite will be.

One very important note: PLEASE don't forget to list the name of the hotel in the "Title" box. In the similar threads on the IC & Hyatt forums, people often forget to include the name of the hotel, which is frustrating when you are reading through the thread.

Edited to add: I just got a good suggestion for how to improve this thread even more. I will cut and paste it:
Also, if anybody else has any other good ideas on how to improve this thread, feel free to post suggestions here. Maybe Mods can delete all unneccessary suggestion posts (including mine below) a week from now after this thread has started to get some legs and has some content.