So it looks like I'm in the major minority here.
I voted for Iron Spider-Man in the Avengers mainly because the worst status quo for Spider-Man in my opinion is to be reduced to only a comic relief character which while in the Avengers a lot of time was.
I love Spidey's jokes I want him to quipp a lot, but when that becomes his only trait, it doesn't feel like him anymore, he is a much more complex character.
I know it can be difficult to give him time to shine when he's surrounded by so many heroes, he would work a lot better on a smaller team like Spiderman and his amazing friends tv series clearly showed.