I've looked through all the video's they have fighted eachother (except when they used MC tools and items or any drawn weapons, only hand to hand), to tell you who's the strongest
From weakest to strongest
AVA 4:
Green - In AVA 4 He can be seen being totally murdered by Blue before even Yellow comes, Only when Blue threw yellow he got a kick in. He is really good for planned attacks with the others.
Yellow - Got murdered at the start of AVA 4 by Blue and green, but mainly Blue. He can fight pretty well but lacks the realization to move when others go too quickly.
Blue - He is average, He can beat Green and Yellow but not Red. he's too strong
Red - He murdered litterally everybody at the start of AVA 4.
TSC - He didn't let anyone even get a hit on him.
Note Block Battle:
Yellow, Blue, and Red - They couldn't even deflect Green when shoving them out of the way
Green - He can Super Smashed bro kick yellow.
Lush Caves:
Red - He is strong but if TSC didn't notice the cave, he would have died
TSC - Anything I need to say?
Wanted:
Green - Better fighter but still lacks the movement speed, just a little, also he got knocked down by yellow.
Red - He got knocked down by Yellow but still a Good fighter, though falls over sometimes during hits.
Blue - He never got knocked down like the others except for when TSC joined,
Yellow - He knocked out 2 of his friends to the ground and was on level with TSC almost
TSC - I don't need an explaination.