Just to sit on the fence!
If you seriously think that there is a comparison to being an officer in HM Forces and anything in civilian aviation then you should reread the job spec. Yes both jobs involve being an aviation professional but the jobs then that is about the only similarity.
If you want to be an officer in HM Forces and would also like to fly then the military is the way forward.
If you just want to be a pilot then save yourself from a lot of running up and down hills and getting shot at and go to CTC for a life in airlines directly.
If you join the forces it is about almost everything except the flying, its about the team, the squadron, the operation and your flying (unless you go RAF Multi) will be down in the weeds on night vision goggles over some hell hole on a map on dark and dirty nights.
Ignore the rubbish above about it being difficult to convert and having to pay for everything. Even if you leave with very few hours you will be streaks ahead in the money stakes the only problem is it will have cost you 8-16(service dependant) years of your life.
So if you want the maximum salary asap then CTC is for you. If you want to serve and do something that you will never get the chance to do again then serve but do not kid yourself that it is all parties in black tie or mess kit. When you have done your 3rd tour in 4 years, lost yet another girlfriend/wife/husband/boyfriend because you are never around you will start to wonder if its time to leave and join the starched white shirt brigade.
PM me if you wish but to be honest the choice is actually very easy. If you are in any way unsure as to which option is best then you will be unlikely to survive or want to survive the military route.
VT