Which are the big 3 banks?

Bank of the James 3 Bank of Winona 2 BEAL Bank USA 9 Capon Valley Bank 4 Cayuga Lake National Bank 11 CITIZENS Bank 2 FIRST Bank OF THE LAKE 6 First National Bank of Gilbert 1 First Pioneer National Bank 2 Lincoln State Bank 12 Montezuma State Bank 4 Palmetto State Bank 6 RESOURCE Bank 7 Rolling Hills Bank & Trust 3 Sainte Marie State Bank 7 Security Savings Bank 7 SOVEREIGN Bank 11 Table Rock Community Bank 8 Warrington Bank 20 Woodsfield Savings Bank 8