I want Darkrai - cool :)
I voted Shaymin because it's my favorite out of the ones I don't have yet.
I voted Celebi because it is the only event Pokémon I've been to or downloaded (from Wi-fi or a side game) one event for. That event was the Movie 13 Celebi and I obtained 3 Celebi during it. I have at least 2 different versions of each of the other event Pokémon such as I have 2 different versions of Arceus which are the Movie 12 Arceus and the Global Link Arceus.
Mew - One of the few legendaries I would take the time to train to 100
Deoxys - I've considered buying a distribution cart, no joke
Victini - I barely missed the last dist, kicking myself
Celebi - I would never use him in battle due to his ridiculous amount of weaknesses
Manaphy - 2 Legendaries in one... yay
There is truth beneath the floorboards;
There is hope in brick and stone.
But they tell me to shut my mouth;
Leave well enough alone.
But I think all that's needed is a match and gasoline.
I stopped collecting Pokémon a long time ago, and I've never trained legendaries. I lost my Diamond cartridge that contained a Manaphy I'd downloaded in Nintendo World (where I went the only time I was in NYC), but I wasn't particularly bothered by that. My Platinum cartridge has the Member Card and Oak's Letter items, but I haven't done anything with them.
What I'd like to see are interesting in-game events for a change that take more than five minutes to complete. I still think that the GS Ball event was the best in that regard, but so few people had access to it (even in Japan, since the Mobile Adapter was ahead of its time). In the near future, I'd like to see Mew receive this treatment in B2W2, since there is so much left to tell about it and Mewtwo.
The moment man devoured the fruit of knowledge, he sealed his fate… Entrusting his future to the cards, man clings to a dim hope. Yet, the arcana is the means by which all is revealed. Beyond the beaten path lies the absolute end. It matters not who you are… Death awaits you - Nyx (Persona 3)