We could have an entire series on Gus and his rise to power. I want that more than a series about Saul.
A Gus series would be wild, but the actor currently has his hands full on Revolution as a returning antagonist. The way that guy can swap between mild-mannered and hardass in the blink of an eye never ceases to impress me.
I don't see a Saul show lasting more than two seasons (and that's being generous). Saul was a fun character and his series could be entertaining with its antics but I think that would get old pretty quick. The A-Team ended for a reason and any Saul series would probably follow that same formula.