Gyarados, Cloyster, or Vaporeon?

vaporeon would be the choice for me, it is a solid water pokemon that can learn an ice move even though aurora beam isn't as powerful as some other ice moves. gyarados is too weak against electric/ gr types considering they are both super effective and gyarados's defense is not that strong. cloyster is just not strong enough and even though it knows ice/water moves, its special defense will be a hindering weakness whenever it battles. lapras is also a solid choice along with vaporeon, so either one, its up to u. as for me, id pick vaporeon because of its balanced stats.