I now several UK airline pilots, who have told me the same thing: they'd never fly Ryanair, and they'd never fly into Paris Roissy or CDG airports voluntarily.
I've clocked-up over 300 flights around Europe and I would never ever go through Paris, mainly because you never know when the workers will go on strike, but also because they are shit - they once lost 11 bags from a party I was part of. CDG is also a badly designed airport.
Just got back from a trip to the UK from Italy. Easyjet to the UK for €45 and Ryanair at £26 + tax from Manchester to Italy. Given that both trips were under 2 hours it's ok to pay for cramped conditions. However Easyjet is much nicer than Ryanair - better seats, less brash colour scheme and EJ don't have that horribly annoying trumpet blast at the end of every flight.
If you want to be sure you'll have a great experience, try to fly via a German airport.