AB is not a bad QB, but he's not particularly good either. He has more talent than most other Saints QBs ever, but the Saints have a fairly sad history at that position. If he seems good to a Saints fan that is probably b/c most of us don't know what a good QB looks like.

My point is, AB has above average talent but is below average in terms of performance, assuming you measure performance as getting the most possible out of each attempt. Thus, all in all, AB ends up being very average in his time. Moreover, there are past Saints QBs who have had less talent that have done more. Everett, Hebert, and Manning are three for sure.