Start/End Dates	2012-02-01 through 2012-05-01
Country	United States

Details

The official Pokémon Global Link website held a vote for players of Pokémon Black or Pokémon White to vote for their favorite Pokémon. The vote was held from November 1st, 2011 until November 30th, 2011. Each Tuesday in November, the current voting results was posted until the final results are announced on December 13th, 2011. On February 1st, 2012 the winning Pokémon was available to download on the Pokémon Global Link's Dream World.


Earlier this year, Japan and Korea both held the voting event. Arceus won the vote in Japan while Rekujya won the vote in Korea.

Press Release

Now's your chance to choose a Pokémon that you'd most like to befriend!

Cast your vote by November 30th to help put your Pokémon in the lead! Check back here or at the Pokémon Global Link on December 13th to find out which Pokémon earned the most votes. Starting February 1st, you'll be able to befriend that Pokémon and bring it into your Pokémon Black Version or Pokémon White Version game! You can vote only once, so choose the Pokémon you want to befriend wisely!

Source: http://www.pokemon.com/us/news/pgl_pokemon_vote-2011-11-01/

Voting Results

The first weeks voting featured Arceus in first place and that didn't end up changing at all. The other positions did change significantly though as Mudkip made a huge jump in the voting obviously fueled by the Mudkip meme.


Source: http://www.pokemon.com/us/vote/#/ranking

Voting Results - Press Release

The fans have spoken! Arceus has been chosen as the Pokémon you most want to befriend!

During the month of November, Pokémon fans were encouraged to participate in a poll to determine the Pokémon they most wanted to befriend in the Pokémon Dream World. Now the results are in, and the winner is the Mythical Pokémon Arceus! Soon, you’ll be able to befriend this celebrated Pokémon from Pokémon Diamond Version, Pokémon Pearl Version, and Pokémon Platinum Version yourself!

Arceus will be available to befriend in February 2012. Once you befriend this Mythical Pokémon, you’ll be able to use Game Sync to bring it into your Pokémon Black Version or Pokémon White Version game!

Befriend the Mythical Pokémon Arceus!

Fans recently voted for the Pokémon they most wanted to befriend, and the winner was Arceus!

Thousands of Pokémon fans cast their vote for the Pokémon they wanted to befriend. Now everyone can befriend the winner: Arceus! This Level 100 Arceus is ready for battle with its signature Judgment move and three other powerful moves. To befriend Arceus, use this special password at the Pokémon Global Link.

The password is: ARCEUSVOTE

Once you befriend the Mythical Pokémon, you can use Game Sync to bring it to your Pokémon Black Version or Pokémon White Version game! Arceus will be available for only a limited time, so don’t forget to befriend this special Pokémon while you can.

Thanks again to everyone who voted!

Source: http://www.pokemon.com/us/pokemon-news/pgl_pokemon_vote_arceus_distribution-2012-01-31/