If we're going by brand alone, it's gotta be FOXPRO. My favorite is the Shockwave (
review here). FOXBANG, FOXDATA, and all the other features just blow everything else out of the water.
However, there are plenty of electronic coyote call models from good brands that have served me well. The
ICOtec GC300 is a fine caller, as is the Primos Dogg Catcher. Both are good entry level units.