The blue Hippo. Both cards cost 2 and can be removed from the game disable an ice, but Hippo's destruction effect is more permanent and powerful. Capybara somewhat makes up for this with a trigger that is harder for the corp to play around and a lower influence cost (but factions importing Cap will also need some bypass effects).
I wonder what green river mammal will come in the next cycle? Perhaps a platypus?
I would love Platypus or Echidna cards! But they're not Brazilian animals, as far as I know. (gracile) opossums are.— D4v1d-Gr43b3r
It's also worth mentioning Capybara can be used on any ice you bypass, while Hippo is limited to the outermost ice.— ojama