I just flipped to Dish from DTV. Biggest difference is in SD quality, DTV is very poor on that score. Dish is better for watching on a pc or tablet of course.
DTV has the much superior online program guide than Dish's , which is primitive in comparison.
Dish has Epix, The Blaze, the Plex Channels, DTV has Smithsonian Channel and Cinemoi. I don't watch much sports programming but most fans say DTV is better.
I was tired of the DTV HR-24 and couldn't forsee getting married to the Genie for two years .. too many bad reports. I think Hopper will be perfect but am disappointed the Joey doesn't have a tuner ... oh well, three will have to be enough. I also had to upgrade my internet connection to take full advantage of the built-in slingbox.