My wife's favorite, and our largest tree is an Ambersweet. Sweet favorful fruit but will put out new growth early in the year, which would be subject to late freezes. That said, mine has never failed to produce a crop. (knock on wood). Large tree, like Buddingman says about the Satsuma's, it would be best to find them on trifoliate.
Ned
http://edis.ifas.ufl.edu/CH069