I'm getting the AKG 712 pro for competitive gaming soon and still confused on either getting the NFB 11.28 or the Schiit stack (Magni3/Modi 2)... any advice?

I'm thinking about getting a new headphone for Competitive/FPS games. If you had to pick only one for playing competitive games which would you pick? the AKG K712 Pro?

IM02, vs Pinnacle P1 vs IE80 vs New Primacy vs iBasso IT03 vs Oriolus Forsteni? or if there's one that is better feel free to recommend it.. Getting my first IEM... not feeling my Panasonic RP-HJE120-PPK anymore. So I'm new to all of this. I just know I like bass... I want an IEM that will...