People do pick
who counts as a tank when built as such. Tanks aren't really favored in the jungle since you have the highest impact on the map as a jungler, and if a lane screws up then you're likely not going to have enough items/damage to handle it. There's also the issue of team comps not necessarily scaling well into the game, so the meta has shifted in favor of more damage across the board.
is still in a good spot, but I don't own him and a lot of other people don't sadly. Way too expensive.
beaten by damage.
is built with damage even though she scales well as a tank.
isn't doing too badly in the jungle but he's mostly only relevant when he's "freelo" status, aka tank items are too strong.
clears too slow.
clears too slow and isn't using his damage/CC at its strongest point in the game, which is early on.
has low sustain clears without a decent leash and honestly is a lot harder to use than before. He's not bad but not amazing. Still can win games off of one good ulti.
is a garbage champion. She's really good with her ultimate but if you're fighting a meta jungler, they can find you and kill you in your own jungle. It's rather unfortunate.
is unpopular right now. I feel like he's meta only when Trick has found an amazingly broken build of some sort.
is unpopular as well. He's not bad either but if you don't know how to use him, you will lose your team the game.
isn't picked probably because his MP sustain is garbage even with blue. He's not bad at all, but he's mostly known for top lane anti-meta. Haven't seen dedicated Trundle mains in my elo.
still works and still wins.
practically known for stomping games because getting your team fed is how to win solo queue. Garbage if your team is not good with him.
is hit and miss. Too hard to use right now.
I wonder if most people realize that Hecarim is a tank.
gets kited too easily.
is the same as Warwick but more damage built. He terrorizes low elo.
counter pick.
That's literally everyone in the jungle that can be built primarily tanky. Hecarim is favored because he still does damage, Vi is still favored for the same reason. They have too many problems right now with how they interact on solo queue and if laners fail their lane. About half of these champions need buffs or the meta needs to shift via nerfs for them to see play. It's not that they're boring, it's that they're not FoTM. Same for top lane outside of usual juggernaut picks.