Should I go with a Bank or a Mortgage Broker?

A good debate has opened up as a result of this question asked in Zillow Advice:

Should I go with Bank or Mortgage Broker?

Agents like Andrew Walter offer reasons to go with a direct lender while lenders such as Gregorio Denny offer the argument that superior service is important.

What do you think?

P.S. A recent post in Mortgages Unzipped reviewed the different types of lenders.