Stihl or Husky. Only way to go. I've got a husky that I've been through 3 or 4 bars and I don't know how many chains on that still cranks and cuts like a champ. I've got a big stihl that I inherited that will cut anything regardless of size and a 12 yr old stihl pole saw that I use at the camp for clearing roads shooting lanes and firewood work that has probably cut down 150 acres worth of timber over it's life. Bars and chains are all I ever have to replace on them.