Alpha Flight took such a dive for me after Byrne left. Characters like Goblyn and Windshear just remind me of a time when I couldn't figure out why the comic was still being published.
My ideal Flight shelf is pretty much issue #1 (Northstar/Aurora in matching costumes, orange 'Squatch, Mac not Heather) except I also really like big blue muscle Box and Shaman's later black and white costume. I actually really liked Box as a shape-shifting robot, but his design was pretty dull.
Not much of a villain shelf for them, though. The Master, Dreamqueen. Maybe Gilded Lilly. Omega Flight is actually pretty lame: a claw guy, a smart guy, a bullet-proof lady and an infinite number of not-bullet-proof dudes. If it weren't for the stolen muscle robot, they'd be completely ineffective. Somehow Mystique's Brotherhood of Evil Mutants is more powerful than Omega Flight, and one of them is an old lady with a crossbow.