I've narrowed it down to four...mainly because as of this moment they're the only concerts I've ever been to.
Kiss (1996) They came to Ottawa during one of their many many reunion tours and as in true Kiss fashion blew me away. The noise, the lights, the explosions, the making the audience wait through two encores before they sung "Rock and Roll All Nite" routine. Gene and the boys brought it all.
Ozzy Osbourne w/ Danzig (1996) A friend of mines father works as an advertising executive at a local radio station, so he gets full reign of private box at our local NHL hockey venue in order to schmooze potential clients. So imagine to my absolute surprise when my pal calls me up to invite me to go see the Oz man from said private box. I don't remember much about the concert itself (Well it's Ozzy, so it had to have been good) but the seating arrangements were super super sweet.
Barenaked Ladies (2001) BNL's live shows are great due to their massive amounts of improvisational comedy and tons of audience participation and interaction, and this concert was no different. All in all a very very fun show from one of Canada's most talented and all around entertaining performers.
Ozzy Osbourne (2002) Again, another trek to see Mr. Osbourn. Only this time the seats were not as nice as before (I was sitting in the "pot smoking section", I don't know how they were able to smuggle it in, but I know it was there because my jacket smelled like weed for days
) But still it was another great show with Ozzy bringing a nice solid mixture of his old and new material and keeping the crowd pumped during his set.