Smart guy, you really need to get a grip. CTC wings gives you a fairly good prospect of a job, however, that might include a 6-18 month wait depending on which airlines have a need at any given time. CTC wings and any tagged schemes with other schools are pretty much the only guaranteed way to get an airline job unless you have favourable connections which any organisation. These schemes aside, it really doesn't matter where you train and get the license as long as you adhere to the accepted facts: cpl and IR at same school, obtain first series passes and have a traceable training record. Now, if you choose to pay 100k upfront and do this at Oxford, fte etc then fine, but you must realise that you gain no advantage! You could chose to work and fund your way through highly respected modular schools and emerge debt free, whilst still having a traceable training record, first series passed and having come from a proven school. Where do you think the majority of the military guys get their civil qualms from? Not Oxford or ctc, but Airways flight training, on track etc...
You also need to realise that modern HR has changed; its very automated and competency based now (see eJ non type rated recruitment thread). Your ,incense is box tick 1 to get the application processed, and assuming that you meet other criteria then you may progress to a selection centre. Where you license came from is not relevant!
So, to sum up for you. If you've got 100k and lass CTC wings selection then there's probably no quicker way to get an airline job; the same goes for tagged schemes with any other school. However, just paying for an integrated course, untagged, just because you think it's better is financially stupid. As long as you get your license and can stick to the 3 criteria that I mentioned then you have the same chance as everyone else. If you can't pass CTC wings selection, then you may well struggle with any airline selection in the future. Even if you buy 1000 hours experience you still have to jump through the same HR hurdles when applying to an airline (see the issues experienced pilots have had with eJs online aptitude test)
You really should do some in depth research - visit some of the small schools mentioned and have a look. This is all based on personal experience over the last 18 months, and yes I have a flying job.