Not sure what city you're in, but maybe my experience can help. I'm originally from NYC, but now living in the outside burbs, I've still got the overwhelming options.
Before I got pregnant I found what I thought was a great place. AFTER i got pregnant - the place was my worst nightmare. I'm not saying every place is like this, but a lot of places handle different types of patients differently. I was sure I would want an OB, because why not, until I realized how medically "mechanical" the practices around me were.
I weighed my options and being too scared for a homebirth and having some (not high risk) minor concerns, like asthma and thyroid disease, I wanted to be sure I could get care (and pain meds
) if I needed it.
For me, I was able to find a hospital employed midwifery practice that works under the supervision of the OBGYNs also on staff. Don't be afraid to figure out what you want and then look for it instead of seeing what's available and then picking the closest thing to what you want.
If you're not completely against midwives, but you're sure you want a hospital birth, then start by looking up stats. Check the C-section rates, forceps delivery, vacuum delivery - everything. If there is anything that is really wacky, cross it off the list!
In my opinion, start with the hospital first (assuming you want that, again!) THEN find a doctor. You are probably not going to find an OBGYN practice in todays modern world where your doctor will work solo and be your deliverer - he/she will likely have lots of colleagues. The hospital staff will be in there too, taking care of you before your doctor is called and after he's finished, so remember that. Good docs practice in good hospitals, so you'll narrow down the weenies once you find the place that works for you
GL!