Stacking vit is effective but boring, since chaos/lightning weapons remove all scaling and still pack a punch its pretty much the most effective thing to go for combined with vit. Allthough the counter to this would be dex/str build with a buff which is possibly even more cheesy and crazy good, but also IMO boring, haha...
https://mugenmonkey.com/darksouls/?c=429485937234585968 Is what im shooting for, i dont mind the low vit, it just feels cheesy to win by out living the opponent instead of outplaying(spamming

) him.. Had a couple of invasions today at around sl55, great fun, allthough my only loss was to a oneshot parry
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i should watch my spam a bit, especially when the foe has a dagger in the mainhand. Richards Rapier feels great in left hand, it has some great reach combined with fast swings from the scimitar during closerange is pretty neat.