I think I've been to the eightball, but that day in ann arbour after a football game is pretty blurry .
My favorite bars are / were in no particular order
1) Sneaky Dees in Toronto, loved going there and getting cheap pitchers of beer and build your own nachos. Also a great people watching place.
2) The Dominion House Tavern, Windsor, also known as the DH/Ditch. Tavern running nearly continuously since 1800. Acted as the town hall for a while and was used during the war of 1812 as a headquarters for attacks on detroit. My roommate in second year did a paper on the history of the bar for our urban history class.
3) The Bridge, Windsor. A dive where the carpet is older then most of us. Missed a few afternoons of school there playing shuffle board and drinking pitchers.
4) The Trasheteria, Guelph. Great music, freak show of people lots of university girls.
5) Lorretto tavern, a bar in the middle of no where ontario, Highway 50 and Hockley Valley Road. Friday nights in Grade 13.
6) The Costigan, Edmundston, NB. A weird old movie theatre with a pub on one side of the projectionists booth / balconies and the theatre portion is a giant dance bar. you can sit up stairs and watch the show below.
7) the opera House, Miramichi, don't go very often, but it is a legend around NB. Friday nights everyone from 18 year olds to 80 year olds is there drinking and whooping it up. The bar is 5 stories tall and has movie memorabilia everywhere. including an alien in a tube. Not always the best place to go really drunk.