Everything is bigger in Texas, right? Well that may be so, but for bank investors, bigger is not always better. 

Using the FDIC's deposit market share data, Motley Fool contributor Jay Jenkins identifies three regional banks that are winning Texas business in a big way. From regional subsidiaries of international banks like BBVA's (BBVA -1.14%) Compass Bank to pure-bred U.S. regional players like Cullen/Frost Bankers (CFR 2.09%) and Prosperity Bancshares (PB 3.80%), Jay sees strong performance from old-school banks that are not "too big to fail."