Saw this on a Ron Paul site I frequent, so keep that in mind, but I thought it was interesting.
Total candidate talking time (in seconds): 4041
Percent of time by candidate:
Perry: 21.3%
Romney: 15.7%
Bachmann: 12.7%
Huntsman: 11.3%
Gingrich: 10.8%
Santorum: 10.4%
Paul: 9.6%
Cain: 8.2%
link:
http://www.ronpaulforums.com/showthread.php?315288-Percent-Debate-Time-By-CandidatePaul should have had more time, Huntsman less. Also, I will say that Santorum knows how to utilize his time effectively to get his message out.