It may be to the advantage of an airline to list generic average numbers if it beats the competator, the same as average age of the fleet of aircraft. Also incident percentage records. Could start a whole lot of mud slinging in a marketing war as on time performance, direct flights etc are also factors.
As to the correlation between experience/hours/hours on type etc. There are so many variables that it would be extremely difficult if not impossible to determine who is the better pilot. The most difficult factor I can think of is a high time pilot becoming complacent and the low time pilot suffering from a lack of experience. The low time but sharp and vigilant pilot with a high level ov awareness could be the better pilot while the high time pilot who could have seen and experienced just about all one can knowing quickly what to do in any adverse condition eg: suix city, Sully on the Hudson etc. Wow having said that how many of you have ever heard of a novice saving a flight from certain desaster, does anyone remember the name of the F/O flying with Sullenberg?