Which of the following Canadian Ontario Universities Acceptances are Best?

The top 4 seem good, but you need to think about where you'd prefer to live over the next 4 years. Do you want to live in a buzzing and bustling major city like TO, or would you prefer the small-town, tight knit community feel of a place like Waterloo or Hamilton?

My advice is to figure out whether you like business or hard-core mathematics. I am in MAC and if you're not in the engineering program, I would say dont bother. The BTech curriculum is very similar to that of the MAC engineering program but you're not in their engineering program. If you want to spend your time transferring over, you could. Electrical Engineering is circuits. If you like robotics, that's mechatronics (mix of electrical and mechanical). Mechanical is machinery. You sound like you dont know what you really want to go into. For engineering, I would suggest McMaster or Ryerson because they will have a general first year in which you'll have more time to figure things out. BTech program actually allows you to take one course in the field you want to see if you like it before you choose your discipline. But for engineering, I would still choose Ryerson. For business, that's up to you. Waterloo and Laurier are both good for those programs.