Clearly there is not a uniform standard room or amenities at Wyndham.
Think of it as a tiered system
Top of the Tier at any property are the Presidential Units, provided that resort has Presidentials. Most of the newer resorts do. These are decked out units, all designer touches, colors and finishings, and high end furniture and appliances. Better perhaps than even a Royal Sands. Perhaps slightly less than a Four Seasons.
Next would be the Big Wyndham Developed resorts
Ocean Blvd, Bonnet Creek, Grand Desert, for example. These are new builds with great furnishing and rooms layouts and have great onsite amenities lazy rivers, pools, kids play areas, lot of activities etc. Similiar to higher end Hotel linked TS, comparable to a Marriott or Hilton etc. Have onsite food, but not really onsite restaurants. Hilton and Marriott often share Hotel and Timeshares in one facility. Wyndham as yet to do this but might in the future.
Next would be some nicer properties, La Cascada, La Belle Maison, Alexandria DC, Skyline Tower, Smoky Mountains, Governor's Green, Mountain Vista, Royal Vista, Nashville, Sedona, Magestic Sun for example. These area also build by Wyndham but are not the mega resorts so they have a few less amenities, but are still great rooms, and offer good locations, many are city locations. Still like the Big TS Hotelers but often lack on site food of any kind.
The next category is rather new it is likely on par with the group above, I call it the Worldmark split. Resorts that were being build by Worldmark and Wyndham split off some inventory, so it is dual resort location. Steamboat Springs, South Shore, Oceanside Pier.
The next two levels would be older existing resorts and hotel/timeshare takeover conversions. Here is where there is more variation in quality.
Older resorts would be the old Fairfield Resorts that Wyndham inherited, Fairfield Bay, Fairfield Glade, Flagstaff, Branson (2) and Pagosa come to mind, as well as the Ft Lauderdale properties for example. There are some hit and miss with these properties. Some are kept up in great shape and offer a great experience. Some are not as well keep up and if Wyndham is managing them they may end up with a special assessment to bring them back up a notch. All of the Ft Lauderdales with perhaps the exception of Royal Vista (which was only build in 1996-7 timeframe) as well as the older Williamsburg properties all have had special assessments, so have others.
There are some takeovers and conversions, Durango, Riverside suites were remodels of existing buildings. By the way Santa Barbara was a Ramada Inn, Vacation Breaks who Fairfield purchased did the conversion. Tamarack, some part of Ocean Ridge, Bently Brook for example were buying up some existing inventory in completed builds or taking over the the build completely.
I don't know what I would say is the worse TS that Wyndham has, but I tell you that their worse is a lot better than a lot of other resorts.
Every Wyndham TS I have stayed in has been great, and I would return and visit again.