The Crimson Binome
Hero
Really? Every turn? That seems pretty extreme. In the last (1-20) campaign I ran, I don't think there was even a Wisdom save every level (although Perception checks were more common). It would be pretty outrageous for something to force a Wisdom-based check every turn, unless it's a very specific monster and that's its whole gimmick.But there's still a larger chance of damage/death if you dump Wisdom to an 8 than if you were to have a 12 (and Wisdom saving throws are one of the most common in the game, so an important Wisdom based check/save happening every turn is not an outrageous thing to happen this edition).
In a vacuum, 12 is better than 8, but everything has an opportunity cost; and when you're dealing with something that doesn't show up in every combat (like your attack stat, initiative, and HP), luck is far more important than planning. By putting my 8 in Wisdom, and my 12 in Strength, maybe I'll be the one to break free from the glue bomb and finally shut down the kobold who managed to trap everyone. I mean, probably not, because the law of averages doesn't help when dealing with low-frequency events; but it's not like deliberate planning is going to help much either. Even if you (correctly) assume that Wisdom saves are much more common than Strength saves, neither event will necessarily occur with enough frequency for your choice to really matter. Even if you are +2 on Wisdom saves, it's still entirely possible to go the entire life of a character without that 10% ever making a difference.