formula thing

Hello everyone. Recently I was looking at the Power Rankings and I felt it did not give an accurate representation of who the best players in the tier actually are. Many people are rated highly simply for having easy brackets and getting far in one tournament. This can usually keep them up very high in the Power Rankings. Also it does not take in account other major tournaments such as Doubles Open, DPL, and SPL.

I feel like we could do a better job with Power Rankings and calculate them differently. My idea:
Everyone starts with a base value (100 for example). Upon winning your value would go up and the opponent's value would go down. Vice versa upon losing. Players with a high ranking beating a player with a low ranking should not award many points (500 points wins vs 5 points), but a player with a low ranking beating a player with a high ranking should get awarded many points (5 points vs 500 points).

Obviously there would be a difference between Winners and Losers bracket in Seasonals, The Winners bracket would award more points when winning and deduct less points when losing. Losers bracket should be more harsh in point deduction for losing, and giving less points for winning.

A more prestigious tournament such as SPL would award many more points than Seasonals would. Open and DPL could award many points as well.

Even though all points will be added up, these points will decay eventually. Winter Seasonals early 2015 wouldn't count as much as the current Summer Seasonals obviously. This is in order to accurately show the best players at the moment, rather than players having a high score despite not playing for a very long time.

In a new tournament (for example this Summer Seasonal), every player will begin with 100 points + 10% of their total points.

I hope this idea will be looked at and considered. There might be a hassle finding out the formulas though. I have tried around a lot with these formulas but I sadly couldn't get them right eventually.

Thanks ^_^

Note: Values are arbitary.