The official Pokémon website has put up a new Pokémon voting bracket. Viewers of the site can view the current days Pokémon matchup and vote for their favorite. The tournament will put some of the most amazing Pokémon together in head-to-head matchups throughout the summer! The Pokémon Power Bracket kicks off with three preliminary matchups. These three matchups will feature the Legendary Kanto trio Articuno, Zapdos, and Moltres against the Legendary Johto trio Raikou, Entei, and Suicune!

Rules & Timing Overview

• Cast your votes to determine the top Pokémon in the Pokémon Power Bracket! No registration is required. You can vote right away.
• You may vote once per day per matchup. Each round lasts one week.
• There is no set criteria for how you vote. Cast your vote for whatever reason you want!
• Every phase lasts for one week.

What Does the Winner Receive?

The winning Pokémon will take over Pokemon.com for an entire week, and a special downloadable prize pack will be given away to everyone to celebrate the victory! Plus, Hot Topic will create a special T-shirt featuring the winning Pokémon! The T-shirt will be available at hottopic.com shortly after the winner is announced.

Source: http://www.pokemon.com/powerbracket/us/