I go to concerts as often as I can in Toronto. There's awesome venues, and downright awful ones - but each one is a different experience and worth trying. Check out my favourites below.
HMV: A tough venue to watch a gig at only because the sight lines are tight & the bars are tough to get at. Get there EARLY! That being said, it always showcase the hottest bands going.
Ines Obtinalla: Sweet little music venue. You'll have no problems getting a clear view anywhere. See your fav bands here before they make it to the ACCs and Molson Ampitheatres of the world.