Hey Dana,
Your experience is only going to be as good as the loan rep you choose. There are good people that work at the big retail banks, in some cases . . . and there are also very good, knowledgeable people that work in the independent shops. Similarly, there are rotten, unresponsive, criminal hacks that work in both places (unfortunately) . . .It makes no difference whether your loan comes from a "brand" name bank - what matters is that you get a fair deal, the right product for your situation, and that your needs are met throughout the process.
"Interview" a few options. Talk to several providers - have them give you some basics in writing and ask them WHY they think a certain loan is right for you. How they answer this question should tell you a lot about how they do business. While FHA loans are great for those with small down payments, or buying multifamily homes, I tend to agree with the above . . . if you are putting down 20% on a single family, there is probably little reason to get one.
Most online "rate" sites are just turning around and selling you as a "lead" - that is, selling your information and the right to do business with you to some other broker or lender, anyway. Most of the time, they are not going to be your direct provider in the end. Better to find someone local, MEET IN PERSON, and establish your expectations from the very beginning. Communication is key - ask questions, respond honestly when you are asked, and uphold you side of the deal in terms of returning documents, reading over paperwork, etc. If you do not feel that a provider was responsive initially, they are likely to be even less so as time goes on . . . find someone else.
There are a lot of good, professional, knowledgeable people that work through this site . . . some work for brand name banks, some don't . . .but I am sure that my California counterparts would be happy to help you out.