I have wondered about dating a fellow alcoholic, and don't see it being very good. Alcoholics are very conscious of their own alcoholic minds - we are sneaky, have bad thoughts, and every once in a while we go through a lot of problems in secret. That's why we have AA and such. Can you imagine living with another person like that? I think my own demons might be enough for one relationship.
Also, I would worry that dating another alcoholic, it might be easier to slip. When the relationship hits a rough patch, it might be a tempting solution to relapse together, as a kind of bonding thing. Look into each other's eyes over dinner one night and say..."You know we both want to. Let's have a little fun tonight, it'll be our secret". Yikes!