Let's look at those starts:
QUALITY STARTS FOR LOAIZA:
Detroit (6...SIX!!)
Minnesota (3)
Kansas City (2)
Baltimore (2)
Oakland (2)
Tampa Bay (2)
Toronto
Arizona
Los Angeles
Boston
Texas
Anaheim
NY Yankees
NON-QUALITY STARTS:
Seattle
San Diego
Chicago Cubs
Cleveland (start before last)
Minnesota (last start)
And for Halladay:
QUALITY STARTS:
Boston (3)
NY Yankees (3)
Baltimore (2)
Detroit (2)
Tampa Bay (2)
Kansas City (2)
Minnesota
Anaheim
Chicago WS
Cincinnati
Pittsburgh
Montreal
Seattle
Oakland
NON-QUALITY STARTS:
NY Yankees (2; 1 was 1/3 of an inning short)
Boston (3)
Texas (2)
Montreal
Chicago WS
Anaheim
Oakland
A LOT more quality starts against great offensive teams (six - nearly seven - against the Red Sox and Yankees alone) for Halladay. In fact, 13 of Halladay's 33 starts came against the other 3 teams in the top 4 in runs scored in the AL (NY, Boston and Texas - Toronto is the fourth), and 20 of 33 against teams in the top half in either league. Loaiza has just ten. Hell, with six starts against the freaking Tigers, plus starts against the Dodgers, Diamondbacks, Angels and Indians, I'd be shocked if he DIDN'T have more quality starts.
As for wins when their teams score less than 3 runs...how many times does Toronto score less than three runs versus Chicago? Another misleading stat.