Okay.
Chillking: Has decent bulk, good SpA, and middling Speed. It can run T-Spikes, Techno Blast for coverage, and Endeavor works well with its low HP stat. However, Psychic Surge actively works against it by powering up the Psychic type moves that its weak to, and it doesn't get any Psychic moves itself. Additionally, it doesn't do much to stand out from the other mons with its types, like Chillvark and Scorpita. Not bad, but not my first choice for sure. Also, shouldn't it have Sludge Bomb and Poison Jab?
Armadily: Typing would imply offensive, but it's actually fast utility with solid bulk. It gets SR and Spikes, and on top of this it also gets Parting Shot and Drain Punch. It can even utilize Levitate to remove one of its weaknesses. It has some obvious faults, though, namely a lack of recovery or setup. But it's better than some of the other builds here.
Bonite: This thing is just utterly invincible to nearly every physical Pokemon. 98 HP and 167 Defense is already insane, but then you give it two ridiclously powerful defensive abilities in the form of Stamina and Fluffy. What? Not invincible enough? Okay, how about Will-o-Wisp and Sacred Fire? Feather Dance too, why not. Still not invincible yet? Lets add Strength Sap. Foe likes Substitute? Whirlwind. And, after all this, it even has a 99 Base Attack STAB Thousand Arrows. Here is a poem for what I think of this:
The only way to win
is to never let this in
Demeen: This thing is extremely bizarre to me. A very slow Dark type with Psychic Surge that gets Photon Geyser, Moongeist Beam, Diamond Storm, Dark Void, and Light of Ruin. It is immune to Psychic, and with Photon Geyser it can use the boost from the Terrain to effectively have a second STAB. Unfortunately for it, it gets some really good priority moves like First Impression, Mach Punch, and Fake Out, but Psychic Surge is its only useful ability. However, this thing is pretty good inside of Trick Room. An Assault Vest set can run Crunch, Photon Geyser, Fire Lash, and Wild Charge or Rapid Spin. It also gets Night Daze and Moonblast if you want to run a Special/mixed set. I certainly like it (especially over the other Psychic Surge mon in this slate) but I'm not sure if it's my favorite.
Anteros: I like this thing. It's a very solid fast utility mon that uses its fantastic defensive typing to be decently bulky. With reliable recovery on top of moves like Encore, Heal Bell, Switcheroo, and Infestation, it offers a few ways to disrupt the foe. The Lightning Rod also lets it take on Electric mons if they aren't packing Fire coverage. The unfortunate truth, however, is that lots of relevant mons have/use Fire coverage. Luckily, Anteros has a couple of shield it can use for scouting, as well as Sucker Punch to possibly score a sneaky KO. However, it ultimately isn't very strong, and its lack of pivot moves might cost you some momentum.