I personally perfer the bit over the hackamore. I've used both (not on Sonny though) and I find the horse responds better to a bit than a hackamore...at least the ones I've rode with both do.
I haven't tried it on Sonny, but I don't really intend to. I use a snaffle on him and he is a dream in that....so I don't plan on switching anytime soon.
Personally I like riding in a bit when I'm using a bridle, as it allows me to feel the pressure on the tongue and I can really get a feel of what I'm doing. I have nothing against hackamores though!
All in all, I love riding bareback with a halter...
Well ill have to say hackamore...but because im a bitless rider...but i own both hackamore and crossover ( crossover being the main preference).
But yea hackamores arnt for every horse. I used a english hackamore on my TB and found him way to sensative to it, but put it on my other horse and he went perfectly in it....so yea. But i still back hackamores up ( minus mechanical ones )
Ok so breaking a horse that learns REALLY fast? which do you think would be better? my guy is pretty sensitive in the rope halter, and has tried a bit and does fine too.
Honestly, sounds like a matter of personal opinion. Some people would argue that a hackamore saves a horse's mouth, but then again getting them used to the bit (and working on it) is also advantageous.
Sorry I didn't help!!