Anchor Steam is pretty damn good by me. It's hopped a little lighter than an IPA, but a lot more aggressively than a Marzen. Color is closer to an IPA as well. I assume you know about the California Common style generally - it's made with lager yeast (California Lager), but fermented at higher (~65F) temps. I just made one, but I didn't make it an Anchor clone - I hopped it like an IPA - Amarillo, Simcoe, and Citra hops.