I'll give a shout out to Chandon's Blanc de Noirs, price varies from $15 - $20 depending on where you look. Great, crisp, clean bubbly.

I'm a huge fan of Alsatian sparkling rose, so I'll give anything in that genre a try.

For local Canadian stuff, Henry of Pelham's Cuvée Catharine Rosé Brut rings in at $30, a bit higher than most recommendations here, but definitely on my "must try" list. Dry, fine bead, delicious. It's so easy to drink and becomes better as you finish your glass.