You have to take into account practicality, which basically comes down to the length of the bar. The Stihl 260 is often used with a 15" bar, so it is well suited for skirmishes with imps or zombies in confined quarters. The Stihl 650 and 880 are usually fitted with 36" bars (or even 48" with regards the 880), so less suited to confined spaces, but they would be better suited to larger prey. I bet it could handle a Baron or two.
You could be imaginative and use the 880 to slay five demons standing in a row simultaneously.
You could be imaginative and use the 880 to slay five demons standing in a row simultaneously.