thats right it's the two most annoyingly awesome wall/annoyer/spiker/tokicspikers from pokemon!
Right, now cloyster has the better move pool of the two and more offensive attacks.
But to counter that forretress has more defenses and a more defense based movepool plus access to explosion for those do or die situations.
I am neutral in this situation so my personal bias will not affect my decision. I'm gonna go for cloyster for speed, better Sp. atk for icebeam, and sheer retroness.
which will you choose?