Actually they're very balanced out by very mediocre power;/dmg characters, whereas La Junta probably has the worst clan bonus but they are balanced out with huge characters many +8 power + 5 dmg... And if they're facing soa/sob or Montana their clan bonus is useless. Rescue is pretty weak in elo unless you know how to make one, I find the best deck I made doesn't have Kerry or Hax.
Their is no clan that is invincible ( except for maybe Vortex in the hands of a good player). Any deck can beat Rescue as long as you play better than your oppenent. And La Junta isn't that bad of a clan bonus, I got 1376 playing Mono Junta a few days ago. It makes your opponent paranoid after 1 hit.
I feel i can talk better now having won 250 Rescue battles.
I find SoB ability clans to be an ok counter at best Piranas less so then Nightmare (for the record i use a t2 Rescue deck) now to the other clans. Uppers r the biggest problem a difference of 2 attack is nothing when facing cards that have better stats akaJackie Dorian Zatman and maybe Nellie but if the player doesnt have at least 2 of these cards Rescue can easily triumph montana's stats pale in when going up against Marco Hax also Kerry takes them out and sledge is great against edd. Sacromh's sentinals r no match for a great Rescue player and Junkz its a luck o the draw thing. Now Soa ability can reduce some of rescues best 5 stars to nothing more than a weak deck plus 12 attack and i believe GHEIST/Roots r the best counter. also the other counter is probably the other counter due too their advantage in high pillz battles but in low pillz battles they die. Now Bangers r usually easy to beat because i find them easy to predict Ulu Watu at 100% aka Taneriva and Wee Lee and so on can best just about everyone in the game but few people have all those cards. Pussycats r strong against Rescue but as long as u win 3 of the battles ( not that hard u can win without too much trouble.) FPC and Junta aren't much trouble wait scratch that La Junta players with emeth and Gatline and Bryan beat me alot so they aren't to bad. Freaks r easy enough to beat also due to predictability sorry runing out of room have2...