ss
nothing to really comment just the go-to tanks for every game
s+
runner ups if everything else is banned/picked (p.s ruckus can actually be SS because that ultimate is unworldly strong and because in the right hands he can be just on par with any other off tank when it comes to pressure and overall usefulness)
a+
ur best way to go if literally there is nothing else to pick but even then its hard to pull them off, these 2 are actually SS tier in the hands of ppl who have spent a long time mastering them since they are extremely (especially atlas) hard to play with and a good player on them is LITERALLY god
a-
torvald is a very very very situational tank that can shine vs specific stuff like evie/vatu/vii or any annoying champion with lots of mobility that will disturb your backline, that is realistically the only time that he can prove useful which easily puts him in the SS tier but for the sole reason that he is more of a support tank rather than a normal tank and is also efficently countered by resilience and wrecker makes a very distinct pick
d
no real need to pick these 2 unless literally 0 tanks left or you are VERY GOOD on them but even then other tanks probably have better value than these, since they suffer from EXTREME stiffness and are easily countered by the other tanks and any A to SS tier dmg/flank champions who can just easily STOMP them which makes it really hard to make these 2 work vs very good players/team comps