To be fair they are both contributing to the head clashes, its just that Dodson is making sure his head is lower (which is good practice in this type of fight!) and Smith is coming off worse.
Round 1 - Even Round 2 - Smith Round 3 - Dodson Round 4 - Even Round 5 - Smith (scrappy stuff, but Smith landed the best shot of the round - a round of few punches)
Smith's best round. Landed a few decent punches and stunned Dodson. Dodson is losing it a little, WTF is he doing? He's got his man exactly where he wants him, started well, bad cut, now he's easing off? Not the time to relax, Tony. 3-2 Dodson