Imho: start with a warrior, reach to cap or close to that and you will get to witness yourself which is better, then make a char you want or stay or a warrior on another account, reach hg much faster with gear and experiance.
ck hyb are the best pvp role in the game... and ck hyb also can play both depend on how u handle it... I can do melee even with 8 str and I grind with 8 base str from IM til HG9
I would say warr is pve king, hyb pvp king... Hybs can go CK build and grind melee... bot clan for hyb might be the best so you can use spear for grind (more range, more dmg...) only problem is weapon durability reduces kinda fast... but axe durability doesnt go down so fast... Anyway, you should make a warr and lvl it up... everyone needs a warr to farm confortably at some point...
As long as you meet the weapon requirements, then the durability doesn´t go down fast. Buffed stats included. With 8 base strength, I can make a -12 levelreduced dusk spear last 3-4 hours. However premium cavity runs out and I am not using healer/hybrid all stat buff, the same weapon won´t last 15 minutes. Bot hybrid is superior in terms of pve+pvp. SF hybrid has a slight edge in terms of pvp, because of clan buff.
BoT has damage mastery and spears have both the highest damage output and highest range. This means you can grind/farm faster. And both gear and levels are necessary for good pvp - since 9D PvP isn´t a skill-based game, its mainly just about gear and levels.