I have a Stihl BG86 (the replacement for the 85) and it has proven to be a reliable blower. It does not have the power of my 550, however, but I do like it for the quick cleanup jobs. There may be more powerful handhelds out there but it seems that the transition to when a backpack makes sense cannot be far above the output of the BG86.
Scag Tiger Cat 48-inch deck, Kawasaki motor
Lawnboy 10227 2T push mower
Stihl BG86 handheld blower
Stihl BR550 backpack blower
Stihl KM110R kombi system with lots of attachments
Stihl HS45 hedge trimmer 24-inch blades
Echo SRM210 trimmer