gc paladins are decent in pvp. krim is a gc pally if u didn't notice. and i used a gc sader in pvp/woe too.
and yeah as a gc sader, it's pretty much a big priority to one-hit raydrics. it becomes so much faster and safer when u can. i used an andre haedo and some int equips to get there. the peco ride is great for added weight capacity even without cav mastery since gc is your main attack skill anyway. also if u provoke a monster, gc will do more damage. but it only does more damage on the first hit. it'll be pretty hard to voke all the raydrics around u in a circle tho until u get used to it.
maxing endure is definitely nice for some added protection. while sword mastery adds a little bit of extra gc damage, i prefer voke and endure.