+1 on Sprague Creek. Lots of hiker/ biker space in the infield, including 4 tent pads. Not a zoo like Apgar. Lake access. It’s a 10 min walk to the store and the Lodge. Good food at the Lodge restaurant. Grab a beverage at the bar and take it down to the lake. You’re allowed that far west coming down the west side with no time restrictions.
Definitely bring enough food for the summit. Add a few extra water bottles to your panniers if you’re worried about running out. Make the walk to Hidden Lake if there is not too much snow.