Always great artists at the Montreal Jazzfest
I've been checking it out for as long as I can remember.
I can't really suggest packages though as there are SO many awesome free outdoor shows that I've never paid for an indoor show.
They literally shut down 2-3 city blocks in the downtown core for the whole festival and set up massive stages. They have 5-6 stages with all sorts of different styles, but my preference is usually to catch the shows on the Blues stage.
They have outdoor shows all day and evening long. The evening shows are PACKED solid with people.
Pat