Apart from the already mentioned, I really enjoyed "Priest of Nothing" - I hope there is a clearer version from the recording sessions so it can be included in the deluxe edition. "Mirror, Mirror" & "Tied up in Promises" are also two of my favourites from the outtakes.
There seem to be more outtakes and demos from Rock a Little than any of Stevie's other records, it'd be a shame if we never got to hear the remastered versions