While all four remaining GOP presidential candidates made an attempt to define their differences during the final debate in Jacksonville, voters are still questioning what separates their stances.

Matthew Corrigan, a political science professor at the University of North Florida, feels the campaigns are filled with personal attacks.

"I hate to say this, but I think the issues take a backseat," Corrigan said.

The UNF professor argues there are three key issues to Floridians: immigration, the national deficit and electability.

"If it were based on the issues, who would appeal most to the Florida voter? The problem is there is not a typical Florida voter, even a typical Florida Republican voter," Corrigan said.

On immigration, Corrigan believes Mitt Romney has the toughest policy.

But when it comes to reducing the deficit, Corrigan said each candidate has different ideas.

Romney favors a balanced budget amendment, while Newt Gingrich wants to restrict the Federal Reserve's power to set interest rates artificially low. Ron Paul wants to eliminate the Federal Reserve and revert back to the gold standard, while Rick Santorum wants to get rid of corporate taxes in an effort to spur job creation.

The biggest debate centers on the electability of the candidates and which has the best chance of beating President Barack Obama in November.

Corrigan believes Romney is likely the best candidate to do that.