Unfortunately, I don't think there is a simple answer to your question. I can think of one former technical college, upgraded to university, which 10 years ago had a very high drop-out rate, partly because the calibre of some entrants was not particularly great but also because, according to some reports, the teaching was inconsistent. Today that same university, after rebranding, has a very high demand for courses in the local area, in Scotland and beyond, because it has a very good reputation for graduate employability and close links with industry. Its more illustrious neighbour has seen a 15.3% reduction in applicants, the largest in Scotland, reportedly because it is now being more selective and expecting beyond the minimum requirements. I suspect, therefore, that applicants are thinking very seriously about their employment prospects before embarking on a university course. As you will be aware, employment prospects within teaching are not particularly favourable at present - some would say dire. I am not aware of any ITE courses in Scottish universities that are superior to others and, of course, none can guarantee you a job. Yet, despite the unfavourable job prospects, they don't seem to be having any difficulties with the number of enthusiastic applicants wanting to enter teaching. Sorry I can't be more helpful.