Another vote here for the 4 stroke strikemaster honda. Going on year 3 with no issues other than having to adjust the carb screw out of the box (was set low for safety reasons). Chose it because it's very light, dependable honda motor, and no mixing of gas and oil. It's quiet and cuts pretty quick. For many, the mixing is not a big deal. If speed is a factor, 2 strokes have it.
