Abz217,
I have to agree with JonathanB here - there are a few questions in the course of the application (stage 2 especially) that seem to be asking whether you actually want to be a pilot but for some reason aren't going to be, and have therefore selected ATC as the 'second best'. From this, I'm guessing they don't think too highly of that strategy...
My other half is a commercial pilot and from what I hear, I'm not sure I'd want to go through ATC training and validation, and then go through groundschool and ATPL! Personally, I think the characteristics of ATCOs and pilots sometimes differ, so being good at one might not mean good at the other - I may have just opened a can of worms there...
Have you considered joining the RAF to be a pilot?