I think the closing costs should be mainly based on the title company rather than the broker, although some brokers like Fidelity do the "administrative fee" thing. The closing costs on the initial contract are estimates only, so what a broker says on their website/listing may or may not actually be what you pay. As mentioned, you should be able to choose any title company you want if you have had a good experience with a particular one in the past, just tell them before they send them the paperwork.
We had First American Title Company/DVC Resale Market with our second purchase. No major problems. Actual closing costs were ~$25 lower than estimated, so we received a check for the difference after closing. Agent at First American was extremely responsive to e-mail, answered questions within a few hours usually. Overall speed was OK, I have a feeling that they could have processed the paperwork a little bit faster (although I can't say that with 100% certainty), but wasn't a big issue. This was an international seller, so that may have played a factor as well. This was VGC, so deed is recorded in California, not sure if that makes a difference either.
Our first purchase was with another broker (not either of the two in question), title company was a lawyer's office. Also had good experience with them. The title company seemed a bit faster with closing faster, but I can't say for sure. Closing costs were as estimated and did not go over.
