Hard to say really. Having a motor on a good dish expands your viewing choices dramatically.
I can get everything from 55.5 west to 139 west . I could get 148 west until that satellite died.
I do expect to go with a lot more NFL feeds this football season, but absent that, 87, 91, 97, 99, 105, 121, 125, 131 and sometimes 133 are the summer mainstays.
For me, if I had to have a dish I couldn't move, I'd get a C/Ku lnb and I'd go with 125 west. That's maybe six PBS stations, two (sometimes 3) in 1080i HD. Create Channel is pretty cool, and is a good alternative to the Food Network.
On the C-band side there is A&E, History and Disney.