These posts are funny but the bias is palpable. I'll do a non-serious analysis of each class for you.

Warrior is amazing all-around. Great pvp, great pve, awakening is tons of fun. Valkyrie is like the bootleg warrior with a heal. Her awakening will make her great though. Ranger is arguably the best pve class with her mobility and skills. She is good for pvp too but can get bursted. Her awakening is okay, but some people find it underwhelming because it turns a ranged class into a melee class. Berserker has great CC and chain grabs. His awakening makes him mid-range and it doesn't get good until you get geared well. Sorceress is a great pvp class. She is good at shredding people and people will complain that she is OP every time you kill them. Her awakening makes her even better for pvp as the scythe's spin-to-win is great. Musa/Maewha is very agile. They do tons of damage while providing a lot of reliable CC. The Musa's awakening is a glaive that shreds hordes of pve mobs and the Maewha's awakening does the same thing but possesses the power of frost and can stab people. Ninja/Kunoichi are kindof weak but can be strong and agile if you use their skills right. Ninja awakening gives him two blades instead of 1 while Kunoichi gets a Circular blade that makes her pve good. Wizard/Witch are great pve classes. They're the only classes that don't need potions in any situation. They have huge nuke abilites that do tons of damage in a wide area, however they have a high cooldown. Their awakenings give them elemental orbs that give them even more destructive aoe. Also Witch has waifu status.