I'd say none of the ones posted
The entire idea of single individual with biggest impact is flawed in my point of view
While it is flawed in a sense, there has to be a start of Altcoins and the start of the rise of them -- and these names are key to knowing how Altcoins were able to rise into an industry pumped with BILLIONS upon BILLIONS of dollars where people are making (and LOSING) fortunes.
I'd have to include Satoshi in this list, even with him being the creator of Bitcoin he's still someone who created the Bitcoin, which in turn is the only reason that the rest of these coins are even close to here. The rest of the people up here I'm going to have to agree with (maybe not coinhunter though)