The funny thing is, no one out of us even knows 5% of the players there. Most only heard of Bastl
I think you are being a little harsh.
I believe most regular challenger players would also have heard of at least Elgin, Martin, Sitak, Ledovskikh, Karanusic, Kumantsov and Smirnov.
Probably also known a little would be Craciun, Huey, Gemouchidis and Battistone.
Comments from other players would be interesting. (And if you think predicting unknown Greeks is difficult you should try Kazakhstan and Uzbekistan!)