Personally: I've done two race weekends at DL and one at DW, I much prefer the course layout at DL, the course at DW isn't interesting enough for me to go annually. Too much time on the roads between the parks (nothing they can really do about this), IIRC I had to wake up earlier than I did for DL. It was fun and perhaps I'll return for Star Wars next year if the medals are great but it's not something I'm really excited about at the moment. On the other hand... I really hope they bring back the DL races. The time in the parks there is by far my favorite half marathon experience.