At first these two have nothing in common (except that they are introduced in Generation III and are included in Hoenn Dex). The one is the heaviest and the one is the longest. The one is a Ground-type while another one is a Water-type.
Yep, this is a battle of the Pokémon superlatives and oh guy, this can't get any more different. Groudon holds the title for heaviest Pokémon, which is almostly roughly 950kg (2094.39 pounds)! And Wailord holds the title for longest Pokémon, who is almost 14.5 metres (50 feet tall)!
*Who is stronger?
*Who could win in a battle?
*Who's having a better moveset?
Let the voting commence!
Note: this is a multiple choice poll.