Not quite. U-verse doesn't have AMC or WE yet. In addition to G4, E! and Lifetime in HD that you mentioned, they have ESPNU, WGN, Outdoor, QVC, Shorts, Style, Travel, Versus, Wealth and dozens of HBO and Max. The don't have Cartoon Network, C&I, Fuel, NBA, Tennis or Bio in HD.
All of these channels are in HD on U-verse.
HERE's a really good, up-to-date list.