My favorite? That's tough.....I would say Suppers Ready or Firth of Fifth or Musical Box, or anything off of Lamb Lies down on Broadway.....favorite drum song would probably be The Cage (off of Lamb).....
Yup, a mostly jazz guy from Weather Report, he also played with Zappa (if there is any question about his technical ability), dude is an absolute beast.....if memory serves Collins still did the studio drumming and Chester was their live/concert guy....