I'm considering trying HoaC this season, since I'm kinda "meh" on Clutch and there aren't too many other choices. (Everything decent has been named in this topic.) My player is a C, so I have Natural Leader to invest in first, but the lack of options is apparent for all of us on the OL. If I do that, I'll let you know how well that VA-buffed 80+ Confidence works.
Personally, I like Second Wind too. I don't think any of us really know how much Stamina/Energy affects our performance, other than "Stamina is a stat. Stats are good." and it's a common belief that finishing the game with
high (80+?) Energy is "good enough." Is it really? Why not 95+? Maybe that drop from 100 to 90 causes a more substantial decrease in stats than we think it does. Even if not, getting a beefy Energy refill for the 4th quarter, when everyone else is also tired, is bound to lead to good things.
tl;dr version: Stamina/Energy might have a bigger effect on performance than it's commonly believed and I think Second Wind is a good VA.