This is a bit late, but here's my two cents.
I have frequented the Grape and Granary. Have no complaints. Nice fresh ingredients, good help, decent prices.
There is a place called Leeners in Northfield. I have bought items from them, but never any AG ingredients. They do seem to stock most things and have competitive prices. I'd say beer is about 1/3 of their business.
The Brew Mentor I just discovered. I bought ingredients there this past weekend and plan on brewing this upcoming weekend. Prices again were competitive. The store looks excellent. The staff was very helpful. They also do free clinics on Saturdays.
Primary - Plain Pub Bitter
Bottled - Brewer's Best English Brown Ale (Suprisingly good!), EdWort's Apfelwein, Cleveland Winter Pale Ale
Tap-A-Drafted - Sweet Baby Stout
On Deck -