Avalanche vs Rockslide vs Thing

random encounter on top of a mountain.

if  avalache is able to direct his power at rockslide and thing and crack them apart he wins, but if they are to durable for that approach then im thinking avalanche gets punched out by one of them and then rockslide would win over the thing.

or maybe avalanche does a whole bunch of tricks with the moutain and comes away victorious

I think that the Thing can take Rockslide.
My bigger concern for the Thing is that Avalanch can use the location to a massive extent (it really play for him).

Avalanche easily knocks the others off the mountain.