A quick crib sheet.......
If you can't stand buggy receivers, go to D* (for now...... D*'s homegrown DVRs are replacing the Tivos.... we'll see how this one pans out over time). E*'s receivers will drive you to drink sometimes.
If you can't stand overcompressed HD, go to E*.
If you HAVE to have every NFL game go to D* for Sunday Ticket.
If you have to have HBO Comedy, Showtime Beyond, and a handful of other movie channels go to E* (D* doesn't carry these)
If you have to have Universal HD, go to D*
If you have to have TNT HD or the Voom Channels go to E*.
If you want XM music channels, go to D*
If you want Sirius music channels go to E*
If you like high quality, free concerts, go to D*
If you like low quality, public access quality shows with the CEO of E*, go to E* and watch the Charlie Chats
If you speak a foreign language, go to E* (HUGE international channel lineup, cricket, and a bunch of other world-centric programming)
If you want to buy your equipment at Best Buy, Circuit City, or most regional electronics chains go to D*
If you want to go to Sears or Radio Shack, go to E* (independents may carry either).
If you are in a TV market where the networks are owned and operated by the parent corporation (O&Os), AND you want D* delivered broadcast channel HD, go to D* (for now, this may change SOON due to the Rainbow 1 satellite sale just approved by the FCC last week).
Anything I miss?