1. This will most likely start flaming wars....
Okay, lets look at the weaknesses and resistances before we decide ne?
Dialga:
Palkia:
Okay, lets look at Dialga's and Palkia's types.
Dialga - Steel/Dragon
Palkia - Water/Dragon
Look at the resistances and weaknesses
Palkia:
Resistnaces:
Steel - 0.5
Fire - 0.25
Water - 0.25
Weaknesses:
Dragon - 2.0
Dialga:
Resistances:
Normal - 0.5
Water - 0.5
Electric - 0.5
Grass - 0.25
Poison - 0.0
Flying - 0.5
Psychic - 0.5
Bug - 0.5
Rock - 0.
Ghost - 0.5
Dark - 0.5
Steel - 0.5
Weaknesses:
Fight - 2.0
Ground - 2.0
So you can see that Palkia is weak so some of Dialga's moves, which are:
Dragonbreath - Dragon
Dragon Claw - Dragon
Roar Of Time - Dragon
Dragon Pulse - Dragon
Draco Meteor - Dragon
Total - 5
Palkia can own Dialga with:
Earth Power - Ground
Aura Sphere - Fight
Focus Punch - Fight
Earthquake - Ground
Focus Blast - Fight
Rock Smash - Fight
Total - 6
Lets look at move pools:
Dialga:
Palkia:
Palkia learns 64 Moves, 6 of which are super effective on Dialga
Dialga learns 61 Moves, 5 of which are super effective on Palkia
A Picture of Both of Them:
Dialga:
Height - 17'09"
Weight - 1505.7 lbs
Palkia:
Height - 13'09"
Weight - 780.8 lbs
I can't think of anymore info hahaha!! Well, I just thought I would post some facts to base your vote on!
I vote Palkia, it looks cooler, it has more moves in total, not to mention 6 moves that will pwn Dialga, whilst Dialga only has 5 moves that would pwn Palkia. Palkia only has one weakness, Dialga has two. And Dialga is fat apparently, compared to Palkia it is anyway xD So yeah, in short
PALKIA > DIALGA