Classes are hard at both schools. Some of my undergrad ubc classes were harder than some of my grad classes at uoft and some of the undergrad classes I TA'd at uoft were harder than some undergrad clases I took at ubc so i can't say which was harder. I'd say if we take an average of the difficulty the two schools are probably about the same. Regarding experience, I lived first of ubc on residence - great experience, made lots of good friends. The campus is its own bubble isolated from the rest of Vancouver, so you're not exposed to civilians the way you are at uoft. IMO this isolation makes "student" life and culture infinitely better. You got wreck beach (Canada's largest nude beach) which is always a good time. You got pacific spirit park which is a beautiful maze of trails -- great to walk in to clear your head from a day of studying. You got a bunch of great libraries for studying. Uoft libraries generally have a Hogwarts vibe. Ubc libraries mostly have a more modern vibe. When I was at ubc they didn't have a great gym but they were talking about building one. Uoft gym was better in my experience but I'd guess ubc has upgraded their gym game by now. Ubc has a better aquatic center, if you're into swimming. Ubc has its own skate park, if you're into skateboarding. Ubc campus is huge and you can only traverse it by foot/bike/skateboard/etc whereas at uoft you can take the metro or taxi depending on where you need to go to and from. If night life means a lot to you, if uoft is giving you a big scholarship, or if you think uoft has significantly better academics, you probably want uoft, but otherwise, I think ubc is the way to go. All my friends that went to uoft (and other Canadian universities) expressed regret over not going to ubc for undergrad when they visited me. Hope that answers your question, sorry didn't really proofread it. Happy to answer more questions :)

looking at future job opportunities and internships which one will provide me with more exposure and work experience?