I went with the FS 94R, it's a traditional two-stroke, not one of the new fangled ones. Tons of power and relatively light.
^ This, but I got the KM, wanted to run the power scythe/hedge trimmer, maybe an edger, and a brush blade. TBH I have a nice backpack blower, but for my whole 200' driveway I blow off, I could no doubt use the Kombi blower, those who have it seem to rave about it.
I rented a HL100 hedge trimmer last year with the 4Mix, to make sure the pole trimmer would work for me before I bought one. I liked the easy starting and power of the 4Mix, and asked my buddy the Sunbelt manager what he thought of the 4Mixes... his advice was to buy a 2 stroke while I still could. Between that and the stack of blowed-up 4Mix powerheads in my small engine shop's back shed...
My 94 starts on the 2nd pull, even when it was close to freezing out and I wanted to make sure my ebay power scythe worked while I could still return it. Plus the fuel tank is barely a pint, but even tooling around using said power scythe to inefficiently trim my whole acre (including ~1500sf of steep embankment) I haven't managed to use more than about 1/2 a tank. I top it off every use to keep condensation out and I'm always amazed how little it takes, especially for a 2 stroke. I don't even know if it's had 3 tanks through it to be theoretically 'broken in'.