I'm arguing that with the recent(ish) storm changes, Stars and Stripes tuning to reduce storm damage is unrivaled in the strike tuning category.
SnS tuning, in the above clip, lets me survive 13 seconds in storm while take around 200 damage. Without said tuning, I'd have taken around 333 damage, which would be impossible for me to traverse with anyone below 350 hp, most of who have piss poor mobility. This doesn't include any extra time/hp I'd have to waste healing to get to the rez card in the first place, any extra hp I'd spend fighting, or any extra hp I'd spend trying to get back. Few characters have that kind of mobility, even with support cards. This effectively means there are certain items and tactics only available to you later in the match. This is proven by the RAM that ate shit because I hit him for 44 hp damage. If you look carefully, you'll see he died right before he made it into the circle.
This isn't even getting to Amajiki's tuning, which not only improves your survivability with less resources, but also lets you drastically upgrade your offense through strike, rapid cards, and tech cards. Imo, while it doesn't clear the revenge tunings or melee based tunings, it's at the very least on par considering how you can get every type of buff and then double it. Like I do here which lets me eat Tech Shiggy's alpha, even though it wasn't the duration that made it work well. But being able to have a 40% damage reduction for close to 20-30 seconds at level 3-4 is enough to let frail characters eat abilities they have no business tanking.
If I had even one Lvl 1 Support card in this clip, I'd have only taken 120 damage, assuming that heal cards always heal 10hps, and assuming that Amajiki at Lvl 10 gives 8 seconds for Lvl 1 cards. With both equipped, the storm becomes less of boundary like it is for everyone else and more of a suggestion.
The only tunings I'll accept being on par are willpower and crushing PU. Too many people run Kota Finder for it to be useful universally, resist shock/fire are too situational, Full burn requires you to get PU in the first place which isn't guaranteed unless you run something like extra wind or crushing PU, SSR is hard to get value out of with all the aoe and storm itself, booming pu is not worth it over anything actually, trance blow is trance blow, and I'm too tired to write the rest.
TLDR: SnS and Amajiki break the game, everything else doesn't even come close in terms of versatility.