Most of the biggest banks are the most horrible lenders I found. They treat you like they're doing you a favor instead of a mutually beneficial business transaction.
We bought mid-2012 (after patiently waiting 9.5 years for the right place at the right price).....both Wells Fargo and Union Bank were PITA's to work with.
Fortunately, a realtor friend suggested First Republic Bank and were they ever fantastic

They even accepted the Union Bank paperwork (where we were approved already) as there own reasoning its the same information all lenders ask for. It was not a conforming loan, 20% minimum down, we have great FICO's....a slam dunk you'd think; but so many of these lenders treat you like poorly.
FRB is/was and continues to be great. I have heard wonderful things about INGDirect.com and also Pentagon Federal Credit Union (you need not be military, Pentagon or government.....you just pay $15 to join an association that allows you to join PenFed). They have fantastic rates on conforming and non-conforming loans....even 1.49% auto loans (new or used), too.
Writing to you from our dream home - no thanks to Union or Wells Fargo Bank.