Is it better to use a bank or credit union?

All American Bank 3 ARMSTRONG Bank 12 ARROW Bank National Association 11 Audubon State Bank 6 Bank of Newington 10 BankSouth 5 Campbell County Bank 4 Clinton National Bank 9 Community Bank of Georgia 2 COMMUNITY WEST Bank 8 First National Bank of McIntosh 3 Fusion Bank 8 MAIN State Bank CORP 3 NATIONAL Bank OF CMRC 8 Neighborhood National Bank 1 NORTHERN B&TC 4 OAKSTAR Bank 9 PLANTERS Bank 14 Port Austin State Bank 9 Wilmington Savings Bank 4