User blog comment:Ireithien/This Is a Serious Question./@comment-4845243-20150815030348

The haircuts are almost identical. Renner's is a bit more tapered, and is clearly scissor cut on the sides. Haynes' is more even on top, and in the first pic his sides have been cut with a clipper, but the second pic is hard to tell. Also looks like they use different products, Renner going for a more messy, natural look while Haynes' is more slick and a tad shiny. It really depends on what you like better and what looks good on you. But ftr I voted for Haynes. :P