What chairs are the most comfy as a guest ?

I think the folding wood with the padded seats are the most comfortable. But I wouldn't ever judge a wedding negatively re. chairs unless there weren't enough chairs for everyone.

We went with the vineyard crossback chairs with a cushion - mostly just to hit our rentals minimum. Honestly the only chairs I've found I don't like as a guest are the plastic folding ones commonly provided by venues for outdoor ceremonies (you know, the ones with the rounded tops that look kind of scalloped?). But, like Maggie said, in the grand scheme of things the type of chair selected won't really matter to the guests once they're gone.