ManofMan and WP
It is quite easy to find dates and routes where one airline is cheaper than another.
London to Malaga out 1 Aug back 15 Aug - pay by VISA, with 1 hold bag and online check-in.
FR = £277.22
Easyjet = £160.88
Pointless excercise - the problem is that ALL airlines should charge a headline price that includes all of the non optional extras.
Check in is not an optional extra - no matter which way you look at it - neither are taxes and fees.