I "heard" that there's a dragoon that has 210k hp in PvE, yes you didn't misread, in PvE (so it's around 270k in PvP). Can't say his name due to forum's rule. And I believe that amount can't be reached by any other classes while having max ms/as. Of course if they sacrifice some other stats, they may be close to that amount. I personally don't know if that dragoon sacrificed some other stats to be able to get that huge amount of HP also since I only "heard" xD. But it sounds legit because they have passive buff that gives HP.
My Invoker can only reach 213k HP in PvP (have health on every items plus stella ring) while still having maxed ms and as.