Is OB number 2 still going to look in to it?
I guess you need to know the risk of UR vs the risk of C/S in your particular situation.
In the end it has to come down to what you feel comfortable with. As long as you are in control and making the decisions, then what you decide should be right for you.
I think the problems start when choices are taken out of you hands and made for you (i.e. OB 1 and 3), so its the out of control feeling I'm most concerned about. You can opt for a c/s, but if its your choice not something thats pushed on you, you are likely to be a whole lot more satisified with your birthing experience. Same goes for a VB.

Have you thought about having a private midwife if you go for a c/s - that way you'll have a much higher liklihood of having ziggy in recovery with you, early b/f (if thats what you're planning) etc

Good luck. I hope your OB does a bit of research for you before your next appt.