Best and worst Player(s) of WC so far
 

For me best are

Mexican goalie - Guillermo Ochoa
Dutch maestros - RVP and Robben
Germany - Thomas Muller
USA defender and GK - Beckerman and Tim Howard
Uruguay's - the Biter
Costa Rica's - Joel Campbell
Colombia - James Rodríguez - lets be honest they are not missing Falcao
Chile- Alexis Sanchez
Iran - Javad Nekounam (so good against Nigeria)

Worst

Spain - Costa, Iniesta
England - Baines, and Johnson
Portugal - Ronaldo, defines 'meh'
Ghana - Gyan and Atsu amazing going forward against USA but unforgivable finishing

Robben and James so far I think

Tim Cahill, Ivica Olic, Joel Campbell, James Rodriguez, Arjen Robben, Karim Benzema, Luis Suarez, Ochoa, Alexis Sanchez, Thomas Muller & Ozil.

Rodriquez, Sanchez, Cahill, Gervinho and Robben.. most teams have only played one game so it's too early to class them as players of the World Cup so far.

Muller, Robben, Persie, Tim Cahill, Benzema, Messi, Neymar, Suarez, Ochoa and that Chilean guy who scored two goals against Spain.

(was only really judging from the players who've played 2 games)

Best: Robben, Cahill, Muller, Ochoa, Suarez, Sanchez & Brooks
Worst: Ronaldo (in terms of potential), Costa, Casillas & Baines

Add Valbuena to this, why is he still in the French league

Worst = Gerrard

Worst = Fred
Best: Muller and Robben.

Worst = Fred, although I am doubting he is a footballer.
Best = Alexis Sanchez