Redmax hands down. The ebz7500 or ebz8500. If it is JUST for leaf cleanup, then the ebz8500 would be my choice, but not by much. The Redmax blowers would absolutely and totally MURDER anything put out by Stihl, or Echo or whoever else. The only thing that can come close, in my opinion, is the Shindaiwa eb802, and even that doesn't compare to both the ebz7500 or ebz8500. On top of being the most powerful without a doubt, they last a long time. I have a ebz8000 and two ebz8001s with literally THOUSANDS of hours between the three. The 8000 I bought in 2004, and the 8001s I bought in 2007. All have seen intense day in and day out use over that time. They are getting quite weak now, but still run. I just retired all three of them to backup status, as I just bought several 7500s and 8500s.