Not The Best Rates, But Great Customer Service.

I've had an account with BOk for almost 10 years now and have never had an issue with them.  The branches are always adquetly staffed, you can do most tasks online and they have 24/7 phone support that connects you to an actual person without long waits.  The interest rates aren't great, but if you don't keep a large balance in your checking account, the trade-off is well worth it.