You really think there's nothing extraordinary about MJ? You genuinely can't see any specialness in her, any way that she copes with and reacts to the world around her that's heroic, any trait she has that's above the average? You can't look at the Pete/MJ relationship and see things that she offers him that no one else does, ways that she compliments him that his other relationships can't provide? Really?
Y'think Jim Gordon's "normal"? Y'think Jaime's family is "average"? You really think any successful ongoing character in a comic book remotely qualifies as not extraordinary in some way?