I've brewed tons of their kits. They're all good and some better than others. For the holidays I've brewed their cranberry maple christmas ale and it was good. Some that I would consistenly buy are the El Jefe Wheat and Tripel, but usually I would look for the most bang for my buck and build off of their recipes to add my own twists. Many of the prices have gone up substantially since I started going there 8 years ago which is why I went AG. They're a good buncha peeps there, though!!
set I: Pale (3) -> Mild (4-5) -> amber / Victory (20-25) -> special roast (40-50) -> brown (70)
set II: pilsner (2) -> Vienna (3-4) -> Munich (8-10) -> dark Munich (20) -> aromatic / melanoiden (25-30)
encore: smoked (5)