Well i like to answer this type of queries most as i know which dth is really good and which shows good only to get more customers and nothing in it.
Firstly every dth is doing their business so we can't say anyone is really too good/best and anyone is too bad.
Tata Sky's picture quality and sound quality is just awesome with a nice UI.But you have to pay too much simply you can't manage if you are poor.
If you go with ADTV you will get channels with affodable prices for more you can see Adtv Hd section our Smod Jenit has elaborate what is giving adtv.
Afterall i want to tell D2H is good with its prices.Simply the cheapest dth with price.You can get 3d channels so sood and as mystic told you will get Espn And Star Cricket hd surely as its already available.
So after reading it you decide to whom you go.
Good luck.