Battle of the gods

OK, here's how it works... first I'll choose what I consider to be the best pokemon of each type (one type per pokemon) then we'll use alphabetical order and a random number generator to create matchups and play them off head-to-head. Now this could make dragon pretty much invincible, but there are pokemon it still doesn't wanna face. We'll start with the legendaries...

1)Bug-Volcarona  (Yes, it has loads of weaknesses but it does great things)
2)Dark-Darkrai (Well, yeah)
3)Dragon-Dialga
4)Electric-Zekrom
5)Fighting-Keldeo
6)Fire-Reshiram
7)Flying-Rayquaza
8)Ghost-Giratina-O
9)Grass-Shaymin-S
10)Ground-Groudon
11)Ice-Kyurem-W
12) Normal-It'll have to be Regigigas
13) Poison (Sorry, poison's out, no legendaries apart from Arceus and that's not fair)
13)Psychic-Mewtwo
14)Rock-Terrakion
15)Steel-Genesect
16) Water-Palkia

There are loads of dragons here, but that seems only right, I've genuinely gone with what I see as the best. And the fixtures for round 1:
11 vs 3 Kyurem-W vs Dialga
14 vs 12 Terrakion vs Regigigas
1 vs 10 Volcarona vs Groudon
16 vs 5 Palkia vs Keldeo
13 vs 6 Mewtwo vs Reshiram
9 vs 8 Shaymin-S vs Giratina-O
2 vs 4 Darkrai vs Zekrom
7 vs 15 Rayquaza vs Genesect
7 vs 15