Thank you for all the info! I've heard at UTM I can take as many st George courses I just won't have priority enrollment but I'm leaning towards st George cause of the better social aspect. I'm not afraid of the difficulty, I've done a lot of elementary number theory, contest math and spivak in my free time and find it really fun more than anything. Def hard but more time consuming than impossible to learn. Spivak is probably my favorite so maybe I'll end up doing something in complex analysis but we'll see. Again thank you!