You will be able to get a job in Texas from any of those universities. The career counseling at Canadian universities is not as good as US universities. U of T will have more of a multicultural vibe than just about anywhere. Any of the 3 would give you a great education.
I would ask yourself, where do you want to live for the next 4 years? Do you like cold and snow? (I’m Canadian - I know it’s not cold all the time, but when it is…)D16, who goes to school near Toronto, just texted me that she’s out of tea again. She just can’t seem to get warm, even with expensive new boots and a parka. Do you want a new environment? What is the difference in cost to you? Would you get homesick?