Both Hunter and Rain Bird make very good rotors and spray heads.
If you go with Rain Bird, make sure you use 1800 series sprays for smaller areas (less than 15 feet radius) and any of their rotor models except I tend to not like the T-Bird rotors because they do not seem to last as long as the other rotors.
If you go with Hunter, use the SRS or the Pro series sprays for areas under 15 feet radius, and use any of the rotor models except for the PGM series smaller rotor which does not seem to last as long as the others.<img src=icon_smile.gif border=0 align=middle>