I'm thinking of buying a "big ol saw" with a 36" bar. I'd be using it for large dead oaks and cutting stumps. I've been looking at used homelite 2100's and 750's, mac 125's stihl 084,075 and 075. It would be used a handfull of times each year so wieght isn't real critical. Which one would have the most power or cut the fastet? which one is the most bang for the buck? How about reliability and quality? Not lookinfg for brand wars but personal experience and thoughts, thanks