Not much difference in either one, except that if you are staying in hostel, Sunway has a more secured surroundings. Most of the lecturers are ok though in both colleges, there are some excellent ones. The arrangement is such that you wont have all the excellent ones for all the subjects for your class and these are "cleverly" allocated to ensure a fair distribution.

Taylors has more "numbers" going to elite unis overseas but this is due to the higher enrolment in students compared to Sunway.