The Bonded are a little harder to find, and are favored by law enforcement due to the ability to maintain bullet composition when shooting through intermediate barriers such ans auto windshields, walls, etc.
I'd shoot bonded if I got a good deal on them, if not, regular Golden Sabers are just fine for me. They are terrificly accurate when used in conjunction with a good firearm, and the concave hollow point is large enough to simulate an ice cream cone flying through the air backwards. Seriously, it's bigger than a Hydra-Shok, IIRC.