It all depends on what you studied and what course you are planning to take here.Mechanical and IT there are more chances of getting job less for others.
I know lots of students who come to Ontario to study and after completing their study they move to other provinces as the rules and changes of getting PR are quick and fast.
It all depends upon your connections. If you are well connected and know many people , chances of finding jobs in your field of study becomes bigger. Try to meet as many people as possible. Make good connections , keep in touch with them.