A battle is brewing over whether Fannie Mae and Freddie Mac should allow lenders to use alternatives to the ubiquitous FICO credit score. Some industry participants argue that the current credit scoring system works well. Others complain that the Federal Housing Finance Agency and the GSEs should be doing more to encourage alternatives to a system some deem outdated. The FHFA has been evaluating alternative credit scoring models over the past year and charged the GSEs with closely examining potential changes in how they use credit scores. Right now Fannie and Freddie rely exclusively on the Classic FICO score.