The Transformer works fine for output to an HD TV. It's a standard feature for Android tablets, so we only spend time discussing it when it doesn't work or the the feature is missing, as with the Acer Iconia Tab A200.
The screen on the Transformer is noticeably better than the Xoom.
The sturdy metal build on the Xoom is a definite plus over the plastics on the Transformer. The Transformer doesn't have sharp edges or cut into the palms though.
The 1 year warranty and price on the Xoom is compelling for the deals you listed.