It's impossible to tell you which is the best to do. To give an objective opinion as to which mode is best, one would have to have completed both an integrated and modular course. As far as I know, nobody has been that stoopid. However, it doesn't matter which route you go, you still have to pass the same skill tests and the licence issued is identical irrespective of which route you trained.
Giving my tuppence worth. The integrated schools are very good at marketing blurb, and it appears that they do get you a few interviews with airlines. However, at your age, you are up against guys at interview from the same school, but are 15 years younger. Unfortunatly, older people are (wrongly) labelled a training risk and shunned over younger applicants.
So, any advantage you gain by attending an integrated school will be lost.
I maybe wrong and you may impress the socks of the interviewer and get the job, but I am trying to be realistic.
In your shoes, I would go for the modular route, but dont be hasty to start shelling out for the type ratings. Try and get into the TP operators first. Turbo prop carriers seem to prefer people in their 30's as an older candidate is seen as more stable and less likely to scarper off to easyjet as soon as they hit 500 hours multicrew.
Oh, and before you do any of this, get your class one sorted. This is the biggest stopper of dreams.