Rik (M) Gentle nature Lvl 18
I have not used the Chimchar for years, and I used the other 2 in my last runs of this region. Nature has proven to be really bad, but he still helped me solo the first gym with Mach punch. That kinda explains why he's overlevelled.
Rina (F) Relaxed nature Lvl 13
I decided to be smart this time and teach her Rock smash. So far, she has actually proven to be much batter than my previous Bidoof, though she has a much worse nature(slowest team member). But hopefully she will live further.
Jake (M) Timid nature Lvl 13
I must admit grinding Shinx is really hard at this leg of the game, it only get Tackle, and does not learn a good attacking move until level 13. At least Bidoof can, of course learn Rock smash and get STAB off Tackle. the fact that mine is Timid does not help much either, but thankfully, he has intimidate, so I hope that would help him. He also just learnt Spark, so that's good too.
Cheryl (F) Bashful nature Lvl 13
After having my SS Golem get his ass handed to by that smoke bomb, and repeatedly catching Geodudes in other runs with shit natures/abilities, I finally find one that is actually usable. She still has the 'meh' sturdy though. Hoping she will do well in the long run.
That's about it. I also have Starly, Kricketot and Machop in my box. I made a 'hidden' rule to not party mons that I've used before/currently using unless it's an emergency/I get a wipe. Starly and Machop are out as a result. The bug was a pain to grind, so I saved time and boxed him.