I have played at flagswipe and diehard totally blows it out of the water. ive played alot in my backyard, and i played once a long time ago in Toronto.
The people that work at diehard paintball are some very nice people, always helpful and always aware of other peoples safety. The field is excellent, and very fun. Loads of very neat bunkers. Once you think you know the field pretty well, you are playing on a different area during the game. They change the starting points and flag positions alot too. Their school bus course is by far the best and the most fun. To top it all off, the paint is really cheap, 95$ for a case! And its not crap, it is of good quality. The refs take it very seriously but they dont over do it and become pricks, they are very nice. They have a really good lunch there, 2$ per hamburger and they are really good. I cannot think of one bad thing about this field, even if i tried. I highly reccomend it to any new player, I have not been playing very long and im learning so much from the people I meet there. Anybody in the southern Ontario area should check it out, if you don't you are cheating yourself out of a good time!