Vitality builds are certainly shit I am NG+6 in DS1, in Ds2 NG+4 and in Ds3 NG+6 and never I repeat NEVER needed vitality at all
Okay? I can see skipping vitality in DS1 if you're running a glass cannon mage build since it's the HP stat. But in DS2/3 Vitality mainly governs your equip load. Unless you're running around naked you have to sink SOME points into vitality if you want to have decent armor or heavy weapons without fat rolling. Yes there is the Havel ring but the fact is it increases your equip load via percentage not a flat bonus - you get a lot more from the havel ring if you have higher vit.