Yes, lender fees do vary, they also offer different services. It is wise to shop and visit a few different lenders to get a feel of what they have to offer for their fees. In the "big picture" you may pay more for a lender who offers more assistance, shops your loan package for the best program for you and is in a local office so that you can make a premise visit.
I can give you contact information for lenders who have great customer service history and offer exceptional service to their clients. There are also lenders who excel in specific loans such as FHA, VA and conventional.
Happy to help!