Phil's trail, the namesake of the entire system of trails in this area, is phenomenal. (Thank you Phil.) It is a gradual uphill, but definitely plenty of fun to come back down. In the canyon area, there are fun rocks, bumps, jumps - you can easily avoid them, but why?
The lower section is fun for every type of rider. It's a 'model' Bend trail.
The upper section of Phil's (beyond FR 300) is 'Difficult' and super fun.