Tatasky always steals attention with a better picture quality. But that doesn't mean other dth picture is worse.
Let me put it this way. I've been on a d2h South Platinum HD connection for the last 1 year. My family members are more than happy with the SD picture quality. HD experience is just amazing. My dad occasionally says - even though the program is boring we can still watch it just because its in High Definition. Our usage patterns are kind of random - usually cover all genres. Thats why had to go for the highest package. No issues in last one year (except for a bit sluggish software update) and recharged for one more year with same package.
Well, I may get better picture on tatasky, but I feel its definitely not worth chagning simply for that extra wow factor.