ORIGINAL: -pkh-
4-strokes:
Sound more scale-like
More fuel efficient
More torque - spin larger props
2-strokes:
Higher power:weight ratio
Higher rpms for more speed
Cheaper, simpler.<br type="_moz" />
I think you hit it on the spot. I would also add that 4 strokes are more complicated and expensive. Also, they are heavier. I got rid of all dirty and oily nitros, and only fly electric or gas.
The only important thing is to remember is: The best powerplant is the one YOUlike:-)
Good luck
Gerry