I am also considering this option, doing modular at Cabair or OAT. I've got to visit the schools anyhow yet to get a proper idea.
If you do modular at OAT (Waypoint Programme), you must already have a PPL and then do from groundschool -> MCC with OAT. Yet to look into these options more.
I would have personally thought that Integrated students would get prefential treatment by the airlines and maybe the college, so this is why I keep on questioning myself on this one and whether you can think of most well known Modular schools being about equal.
I do wonder if doing modular at these colleges might help as they have some links with the airlines, but then again, it's whether these things the schools say are true, especially for modular students. I personally think having a well known name on a CV helps.
Training is a difficult decision as you will only do this once, while all schools seem to claim their students have found employment.
I have heard of modular pilots having interviews with the airlines from OAT though.