Thanks to all of you for replying. Your input and advice is much appreciated and really helps. Both institutions are equally good quality-wise. The programs are structured in almost the exact same way, if not for the final paper. At UBC, there's the added chance to gain teaching experience. The graduate advisor did indeed confirm that it is extremely rare, if not almost impossible, for MA students to get an RA/TAship at UofT. I´ll give it a final sleep tonight and wrap things up tomorrow.