I cannot answer most of your questions but can answer some. The Anaheim Sheraton is technically "across" from DLR, but the distance to the DLR gates is pretty far compared to some other lodging options.
Here is some info related to location:
"How Far Is It?" (shows actual distances in feet from hotels to DLR entrance plaza)
www.mouseplanet.com/articles.php?art=mm060329as
"Walking Distance Accommodations" (shows hotels within walking distance)
http://www.mouseplanet.com/dtp/maps/...g_distance_map
"Bret's
Disneyland Lodging Map" (shows hotel locations around DLR)
www.geocities.com/ashpsyche/DisneylandLinkMap
FWIW, in my experience WDW vets have a higher tolerance for shuttles and buses than DLR vets based on how WDW works. By all means you should make the hotel decision based on what will work best for you, but I encourage everyone to consider staying within walking distance as it makes visiting DLR so much easier and results in less wasted time. If you are interested, I summarized this here: "HydroGuy's Hotel Rule"
www.disboards.com/showthread.php?t=1199862
Also, if you see the fireworks from inside the park at least once, then seeing them again from outside may be fun. BUT, seeing them only from outside the parks will result in missing 98% of what Remember Dreams Come True is about. I guess what I am saying is make sure to see them once inside DLR - from the hub or on the hub end of Main Street is definitely best to see all of the effects. This is a "must see" at DLR.