So you are finally admiting that the deck is the best and not yourself...
The only reallistic way to prove who is the best player is a bit complicated, give every player at nationals a random theme deck, 4 of each basic and special energy card available, a public pile of common/uncommon pokemon in format and 6 random boosters... The method is quite unreal but the result would be definitve, since only the best deckbuilder will survive, even if someone gets a prime it will only have 1 of each species.
Prerelease tournaments are the best example of skilled players, you have fun, you have to think an strategy, adapting to what you got, not what you would like to have, and you don`t have the best cards available, you win it with either skill or luck, but only the best players prevails.
Wait...so you're saying that the contents of 6 random booster packs, plus a random theme deck assignment (which will put some players at an automatic disadvantage due to type matching) is
BETTER than letting the players choose any cards they want from a preselected card base, where each player has equal access (ok..depending on income situations there will be some variations in this access) to all the cards? In this scheme, I think type matching and the contents of the 6 booster packs will determine the winner, which doesn't prove anything about a good deck builder.
And deck building is only one aspect of the game. Let's not forget about the ability to play a deck. I have a friend who plays the best decks and plays the lists of a very talented player that he knows; however, my friend doesn't top cut consistently like the talented player because my friend is not able to think strategically, execute his plan, and adapt to changing situations the way the talented player can.
Deck building DOES prove something about the skill of the player, but pokemon is a game that includes much more than that aspect. You have to consider the ability of a player to ensure a deck's consistency while teching for the meta and bad matchups, a player's ability to adapt to constantly changing in game situations, a player's ability to think ahead, a player's ability to execute his or her strategy, a player's willingness to devote endless hours to playtesting, and then you can factor in some luck.
You DO have a point about deck building, but let's not put all of our
okeball: into one basket. Jason Klazynski isn't the only player to win worlds twice solely because he is the best deck builder, but because he is one of if not the best all around player in the game.
i hope my points make some sense, and I'm chiming into this conversation late, so I apologize if I'm beating dead horses into the ground, but if I'm not I would like to hear your thoughts.