Which basic sciences is most lenient?

I'm wondering out of big four(Ross,sgu, saba) which are most lenient in terms of passing comp, shelf and block exams.tbh I got fear of repeating and costing me f ton of money. I'm a deans hour roll student did academically well never failed a class... I'm canadian so my only option is carib since usdo and md are crazy expensive 😅 and Euro schools lack USCE. CANADIAN SCHOOLS SRY I DON'T HAVE AN OLYMPIC MEDAL YET