If CTC place the majority of their cadets with EasyJet (from my understanding) and EasyJets requirement is 2 A-levels then surely you are put in the same situation regarding employment from both of these FTO's.
The deciding factor will be which FTO you prefer yourself. I'd suggest visiting both and doing the selection at both. If you pass both then you are in the nice situation of being able to choose your preference.
Also I'd suggest obtaining your Class 1 Medical before you do any of this or make any commitments.