car, cuz its just 45 mins drive and train or bus would take u more than an hour
errr... train taking longer than car? on 401 / 403 / QEW ? but yeah, if you want to take 407 (Toll Route), then that's alright.
Otherwise, I'd suggest taking the train for sure... the only downside are the timings. I think trains only run during a certain time period during the day... buses on the other hand, run late into the night.