h1 = skill
pubg= ex csgo players 2 bad for cs.
i mean i would play h1 over pubg if it wasnt dead
H1Z1 is more fast paced and you need to more go for the kills rather than playing slow.
PUBG is more slow paced, finds loot and then slowly making way to the safe zone, proning in the grass, checking bulidings etc.
I have played both but its the playstyle of each game that sets them apart i prefer the slower paced pubg style compared to gun fight all the time style of h1z1
pubg if you want to win
h1z1 if you want to kill people and make them mad