Reiner makes the armored titan a counter punching magnet

The armored titan really wasn't the best once advancements in anti titan weapons was made but even so, the armored titan could easily be the best at hand to hand combat even despite other titans countering with its armor with hardening, the armor would still at best minimize the impact/damage being done and allow much greater at counter punching and getting the best of dual punch exchanges but oh my god this man Reiner walks so hard into so many of Eren's counter punch's that he ends up getting back triple the power he dished out on to this jaw/face. I know Reiner wasn't a good fighter but you would have thought that after 3rd fight with Eren, he would have some anti counter Technique but no, he ate another big counter AGAIN, I swear I've seen eren do 2x as better against with counters when he fought Annie for the first time

TLDR: Reiner sucks at not getting counter punched

Anyways, a good couple of questions for you guys

1.how many counters would eren have landed in the first fight with Reiner if he could harden his fists 2.could the armored titan potentially be the best Hand to hand combat if welded better? 3. What could have Reiner actually done to avoid getting countered by eren so many times?