I've done both before. Tobacco and pot while in school. I think both are fine if used as a social type thing. I wouldn't recommend 18 wheel truck driving, though.
The brownies were the best because the buz is not so brain deadening and the taste is awful - the chocolate helps to cover that.
The old Mexican was pretty weak stuff, and the joint had to be the size of a cigar. That was best for brownies.
I've had stuff from Canada (Canadian skunk) that when used in a one hitter only took about 2 good hits and it was enough. If you did anymore, you'd have to ask what year it was!
10 years ago I had a bad brownie experience. I didn't know how much weed I should use, so I used an ounce - for one small pan of brownies. I ate one and went out to eat with some friends. About 40 minutes later - WOOOOMSHH - it came on like a big wave. Suddenly I was not fit to be in public. The next day I cut the rest of the brownies in real small pieces.