Original sentence: The University is also affiliated with 9 Nobel laureates (6 alumni), the most of any Canadian university.The University of Toronto ranks first in Canada and 23rd worldwide in the 2007 edition of the Academic Ranking of World Universities by Shanghai Jiao Tong University
Edited sentence: The University is also affiliated with 9 Nobel laureates (6 alumni), the most of any Canadian university because it is the largest and the oldest, not the best.The University of Toronto ranks first in Canada and 23rd worldwide in the 2007 edition of the Academic Ranking of World Universities by Shanghai Jiao Tong University because it is the largest.The best grad schools in Canada are York (especially for law both professional and research), McGill, UBC, and then U of T.The best universities in Canada for undergrad are Queen's, Mount Allison, McGill, Waterloo (only for applied maths), McMaster and Guelph (for the special Arts & Sciences program and life sciences respectively), and York University for business and political science.see also Canadian University Rankings