I don't think you can classify the City degree as "only really 1 year"! Ask anyone about the workload of the ATPL groundschool. That easily equates to one year at University so you may as well put all that effort towards a degree as well.
The third year, although part time, includes a lot of project work that you have to undertake in your own time.
No reputable University would award an Honours degree for just one year's work!!
City will have a stand at the Flyer exhibition on 6th November. Why not go and find out more about it?