Harrier46
JET2 is a fairly new airline, yes it came from channel express but the jet2 brand etc is all fairly recent. So to me makes sense to use the 737 as its cheap to run and they were already using it. Thomsonfly, a well established carrier set up the low cost arm using 737-300 and then 500s cos they r cheap, same as BMI who set up Baby, BA who set up GO all used 737-300 cos they all had 737 operating experience and they are ideal for a new start up.
Im well aware that jet2 came from EXS, i wudnt be a bit stupid to to not notice that considering i work for them.