DBF and I stayed at ASMo in mid-May 2006-we absolutely loved the theming of the resort, it was so cute! We stayed in the Toy Story section (it's my favorite Disney Movie) and got tons to great pictures with all of the giant characters. The buses were never a problem, but it seemed to be a rather un-crowded time to be there (we walked on several rides each day, and others had minimal waits). Our only complaint was noise-which is to be expected at a resort with lots of little kids running around (I highly recommend ASMo for little ones-all of the kids we saw were so excited to see all of the giant characters!). The rooms were cute too-we really liked the popcorn box light over the table! I can't say much about the food court as we only grabbed a snack there on our last day, so I don't know what the hot food is like-the theming was cute though!
This past year we stayed at POR-it was relaxing and much quieter (which was nice as we were there in August when it was much more crowded and HOT-so it was nice to go back to relax mid-day). However, it didn't immerse you in Disney like the Values do with their bright theming and characters (which was also nice as we were feeling a bit overwhelmed with the heat and the crowds).
For kids and first time on-site visitors I highly recommend ASMo! *Also, I noticed someone posted that the Toy Story buildings were preferred-we had a room facing the courtyard with Andy's toys, on the first floor and did not pay for a preferred room.