Its how long is a piece of string.
Each airline is going to be different.
The selection criteria will depend on a large extent on how the Chief pilot became a Pilot.
I don't think you can set yourself up to be perfect for all airlines.
TP operators seem to like Stick and rudder types so go for FI's. Jet operators like to mould there pilots and as most of the flying is on auto's don't really mind low handeling hour pilots.
The qualifications are the same for everyone. The hours flown are just hoops to cut down number of CV's they have to plough through.
But the biggest thing I have seen is...
If you are a knob or not.
They are looking for people who can get on with there collegues not cause friction, not go into tantrums all the time. Not have preduces working with age, colour, sex.
MJ