Of the two collars, I would (and do) use the prong collar. I used
it for Buddy & it was a godsend.We were able to go on walks
with me safely in control of him. He was a terrible puller.Bud was
trained using the old fashioned methods of the day with the
choke collar & pops of the leash. I was awful at giving corrections
cause I couldn't bear to hurt him. Switching to the prong collar
when very smoothly & was only used for long walks.

I am a failure at dog walking I guess, cause Smokey & Maggie
both use the prong collar with modifications. I had to remove a
few links & put the rubber tips on for them. I think the choke
collar is o.k. if it works for you & your dog AND the person knows
the correct way to loop the chain. It should relax the choke when
the dog is not pulling it.