It's pretty boring from a driving perspective (Subaru grade), but the views to the east from the top are pretty great, and then you can cruise along the Fryingpan for 20 miles and enjoy the river.
The ones Kimmel suggested are tops on my list, but it takes more time and energy to get to them.
I like Weston as another easy but scenic pass close by. The west side has great views of Elbert and Massive, and it's fun to let your passenger bomb down on a mountain bike.
1976 FJ40 - green and mostly stock
1996 FZJ80 - not so stock