I've been watching Steparu and Alleriya, who both stream quite alot and have multiple characters at lv60. The general gist from them both seems to be that Berserker and Archer are pretty unwanted, to the point where a group with both of them is unable to do hardmode dungeons due to lack of DPS. People rather disband and look for a new group than go with those classes.
Sorc/Slayer/Warrior > Archer/Berserker is the way it is in Korea at the moment. The top DPS classes aren't exactly alike in DPS, but they're all considered solid choices.
Berserker is too slow for the current endgame, with bosses constantly moving around AoEing, which makes the very static Berserker a poor choice. The new lv60 skill helped, but it's not enough. Archer is just bad overall, it seems.