Well I think the most influential player of MCSG is
MeMyselfAndPi, whom many of you may have not heard of but he's the person that introduced me to the PvP side of MCSG, when I first started playing I just walked around admiring the trees of SG1 or the buildings of SG2 but after watching his videos my understanding of the game increased tenfold. I still remember watching one of his videos which was a guide to MCSG, I can honestly say if I didn't watch
MeMyselfAndPi's videos I would not be playing MCSG today.