In terms of FGes Voodoo decks > Other decks
Wrong,the best Voodoo deck haves a 3578 FGei,and RoL/hope has 3992 FGei.
Those results are biased, since the used computer also affects the time how fast you can play single games. I played 200 out of the 350 games with the Voodoo deck you're referring to, and I used my slow laptop at that time.
Another thing that isn't taken into account on that study (yet) is skipping near-impossible opponents: Octane for RoL/Hope, Dark Matter for Voodoo Panic, etc. If (when) that part of the study is made, the upped 'Liquid Antimatter' deck will most likely be crowned as the King of All Grinder decks, unless something really good is posted before that.
So my prediction for the order of decks for getting most
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withing given time while skipping near-impossible opponents is:
Liquid Antimatter >> Voodoo > RoL/Hope > Rainbow