In all 3 choices I am guaranteed an Employment as a co-pilot on completion of aircraft type rating training(A320).
1) Nothing is guaranteed.
I also have the choice to do an integrated ATPL without partnership and at the end of my course i would be placed into a pool **where i would be given application offers from** : Virgin, Quatar, DHL, British airways, Easyjet, Monarch, Jetstar, Aegean ect.
2) I also have a chance of becoming a millionaire if i put £500k on red.
Wizzair vs Quatar vs Easyjet
3) Learn how to spell Qatar.
In all seriousness these are 3 very different training programs and require a significant investment both financially and personally. I'd recommend you do a bit of reading. My advice would be try the easyJet scheme, it's pretty well trodden. But i'm bias.