Why would a resort guest have any advantage? SDD is on the Genie + tier and not an ILL. First Genie + ride can be selected at 7am for all guests in or off site.
However, SDD is a very high demand ride and quickly becomes unavailable. At 7am keep refreshing every few seconds until 7:20 ( and YES, 7:20 is accurate despite what others say). The ones who do not get it check from 7 to about 7:05 or 7:10 and give up. I saw availability every day of Thanksgiving week pop up for SDD until about 7:20. And some of the times were actually earlier ones like 1 or 2 pm. After about 7:20 you are completely out of luck. It is still not fun to have to do this at 7am on your vacation as opposed to the old FP + way, but if you have patience you'll get what you want. On New years week. I'll grab Genie + before I even buy Rise. Because from watching it all week, Rise had sporadic availability pop up until 730. You just have to be quick and ready and you have a shot at both. by 11 am though you probably will not have a lot to choose from.