I love road racing so for me Sunday is my favorite. With that said... The way LVMS is set up you can actually get in-between the speed stop and autocross courses, and watch both from the same area. You'll have a ball either day.
In my opinion Jimi and the gang at
USCA hit a home run with this new venue. Much nicer setup, better food, much better for spectators, just a win-win all the way around.