I am sorry you are still suffering.
In your shoes, I would send my records to doctors Pritchett and Raterman to see if they could save my BHR. If yes, then I'd start figuring whether I wanted to do that. If no, well, then I wouldn't even have to think about it and could ask them for opinions about a THR revision. Pritchett has loads of revision experience. That would tilt me towards him, whether I would stay with a BHR or not. (How much revision experience do the other guys have?)
Anterior vs posterior? From what I understand, anterior gives you a quicker initial recovery, but after about three weeks, the recovery is the same. Anterior has a different set of complications, including femoral nerve damage. (How common is it? I have met a woman who is crippled by it, but that is just an anecdote. Ask your doc how often it happens with him) Anterior can dislocate, so don't be persuaded otherwise. Might be more likely in a revision. Your scar will be in a different place. That is a small issue, but it might matter to you.
I guess the big issue for me would be which doctor is better at revisions, and which route, anterior/posterior and which prosthesis is the best for a revision. You want this surgery to fix you!
Best of luck.