Ross vs. St. George's quality of education

I've read a lot of threads comparing the 2...mainly on island life and campus, etc. but no one really mentioned the differences in the quality of education between these 2 schools. I would like to know:

1. Which of the 2 brings out consistent students with high USMLE's? (in other words, which on has more students passing the first time?)
2. Which one has "better" professors? --- I know, weird question.
3. Which one has "harder/tougher" professors?
4. Which one has the lower attrition...

Ross vs. St. George's quality of education

Ross vs. St. George's quality of education