I was there this past March and had an absolute blast on "Dicks Ditch". Not the most difficult run by any means but just cool because it's a huge natural half pipe with a bunch of side booters and small drops. It's pretty long too.
Obviously Corbetts is cool too, but I wouldn't recommend doing it the first day you're there. We looked at it and came back the next day to do it.
Another cool one is Tower 3 which is under the third tower of the tram, and all of the Alta chutes are awesome too. Just be careful it's very easy to end up in bad spots in Jackson and end up hiking back to not go over a death cliff. Have fun I'm already planning to go back it's ridiculous how fun and challenging their terrain is.