First, thanks for the info.
Second, as Vorlon correctly noted, summer polling, especially for Republican voters is very difficult.
Third, while Vorlon and I disagreed as to whether Quinnipiac or Marist was the better academnic pollster, we did agree that neither was a top tier (in terms of accuracy) pollster.
Fourth, at this stage you really need to look at name I.D. and support (Questions 13 and 2).
Candidate Support (per Quinnipiac) I.D. (per Quinnipiac) Ratio 90% Exrapolation
Giuliani 30 85 2.83 31.76
Thompson 18 51 2.83 31.76
McCain 10 77 7.70 11.69
Romney 9 44 4.89 18.41
Fifth, the trend this year also bears watching. Taking the earliest Quinnipiac Florida poll of Republicans this year on their Presidential candidate preferences, and contrasting it to the most recent one yields interesting results.
Candidate 2/7 Result Current Trend
Giuliani 30 29 + 1
Thompson 0 18 +18
McCain 23 10 -13
Romney 6 9 + 3
Sixth, supporting the trend is the difference in support by gender. Just as there are 'leading' and 'trailing' economic indicators, so support among men tends to be a 'leading' political indicator and support among women a 'trailing' political indicator.
Candidate Support among Men Support among Women
Giuliani 26 34
Thompaon 26 11
McCain 10 10
Romney 12 6