Based on what you've written it sounds like you need to do some serious research. You'll probably find you won't get to many useful replies when a simple peruse over recent posts and the stickies will provide all the info you need.
See here;
http://www.pprune.org/professional-p...ml#post4774578
This was just a couple of weeks ago.
but from what I gather the major airlines (rightly or wrongly) seem to favour the integrated route.
Depends where you "gather" your information, if its the OAA prospectus then you may want to dig a little deeper before investing the sort of money involved in pilot training.