Nifty little thing, not sure who made it and how correct it is but for fun and games..
http://www.vajoe.com/candidate_calculator.html
Personally I wanted to research Giuliani more..
Former Tennessee Senator Fred Thompson (R) - 93.10% match
Former Massachusetts Governor Mitt Romney (R) - 79.31%
Kansas Senator Sam Brownback (R) - 75.86%
Arizona Senator John McCain (R) - 75.86%