OK, my 2 mains are cleric (L102 Holy Knight) and archer (L89). From a gameplay standpoint, both are good for soloing. Archer will level much faster as a solo, where cleric needs a party to maximize speed in that way. Archer is strong in PvP from the mid 30's until about 60, when mages begin to own the game. Clerics are never a good PvP choice. Archer becomes really fun to play at L51 with the AoE poisons, and that's when the fast leveling begins. I have soloed every boss mob for each level of the game with both characters, and tanked with both in Kingdom quests. I play my cleric with a build of 25 spr (for the crit bonus), 25 end (block bonus), and the rest in str for damage. With that build, I outdamage true tanking fighters. For the archer, my build is roughly the same. Word of warning, the higher level you become as an archer, the harder it becomes to get a party. Most people try to get multiple mages in parties due to the massive damage they can do, and archers are left out unless a party gets desperate for another DD.
Hope that confused you more.
