I have been thinking about this for a while, and I really thinking the wins/losses and score should only be gotten from PvP games. Pretty much everyone knows that the reason the top 50 have such high scores (for the most part anyways) is because they have a deck built to face the god matches or Level 3. That is not skill, and my belief is that a person's score should reflect their skill level more or less. As it stands now, a person can just build a rapid win deck and face level 3 a whole bunch of times to inflate their wins/score. Again, that is not skill. The only true way to determine skill is by facing other, real people.
So, I say score should only be modified by the results of PvP matches. AI matches definitely still give out coins, just not score or win/loss ratio. Now, I don't think it should happen just yet, as there are still plenty of bugs in PvP, as well as cheaters. As well, I think the match-up generator should be modified so that you are more likely to face someone around your point range. But once that is for the most part taken care of, I believe everyone's score and wins/losses should be wiped clean and the score from PvP change applied. Then, the highscore tables truly will reflect the top players.
Anyone else agree?