To me, a hard counter is when no matter how skill capped you are, if the opposing class is skilled capped there is no way you can win, and even worse there may be no way to stop them from winning when playing optimally defensive.
Which classes CC/lockdown hunters the hardest?
Which classes are the hardest for hunters to CC?
Which classes out DPS hunters hardest? (say in a 2v2 setting with resto shaman healers for both)
Which classes are the hardest for hunters to score the kill on?
All opinions welcome, and 2k+ arenas an even bigger plus.