2nd entry programs

Does anyone know which 2nd entry programs in Ontario are the hardest to get into and the easiest? I am in my first year of a 4 year nursing degree at Dalhousie but would like to switch to a 2 year program. I already have a degree (BA) and would have liked to have just started the 2 year degree right from the start, but I was missing pre-requisites. And now the thought of going for 3 more years when I could be doing 2 seems too much! If anyone has any info. about this I would greatly appreciate it