Originally posted by redhotrashLatveria is landlocked. So while that may apply to Atlantis defending itself, a lot of it doesn't really apply to attacking Latveria. Latveria has better technology, fewer warriors (which is a big factor and give full credit for), but Dr. Doom himself is the tipping point.
Im giving this to Atlantis. Big numbers, can attack from anywhere, can control sea monsters. And again Namor can create and drop a tsunami on them from the start.