you can pretty much ignore the hdeg vdeg all that matters is having the same numbers for x and y axis
the ideal case is always having both axis be the same fov since you are going to have a difficult time finding an fps that purely has one axis
after long testing i have come to the conclusion that a fov of about 70 vdeg works well on 16;9aspect (the right match between big enemies and peripheral vision for me)
i am staying away from stretched resolutions since they are hardly reproduce able most of the time (if games don't support them natively ) and they often aren't worth it /drastically over hyped due to pro players using them
if you want to have a "similar " feel 0% is always the go to