Originally posted by Korch
It`s serious mistake to consider that pawns on c5 and d5 gives advantage as (some guys have already pointed out in this thread) "Black has better center" is only illusion - moving c5-c4 will give up d4 square and d5-d4 will only create isolated pawn on d4 which will need to be protected. While you will spent time on g6-Ne8-g7-e6 do you think that White wil th g6 which makes weaker Black squares. I would not call such pawn structure as "better".
Sure, g6 weakens dark squares around the King but the position is closed and white has no real targets or any obvious ways to improve his position. White has no real kingside advantage - moves like g4 are easily met.
My contention regarding pawn structure is that the pawn on e5 isn't going anywhere whereas Black may play for d4, although with proper play, I would be skeptical if this possibility is easy to actualize.
g6-Ne8-g7 [better than Ne8-c7 perhaps because of g4]-e6 takes time but I do not see how white can exploit this time advantage - the position is closed and white has no way to open the position to advantage unless Black committs positional suicide and I do not think exchanges would significantly change the evaluation of the position given Black's sound structure. Probably after an exchange of knights it would be difficult to see how either side could gain advantage.
c5-c4 should not be considered d5-d4 is only practical should recapture be possible by a piece.
Of course the position is equal but I think the Black position more preferable. I think white would like a knight on f4 but I am not sure about the best piece placement for both sides.
Edit: I should note that if d4 is not really feasible, I think white is better due to the passer e pawn but only with a symbolic advantage and Black's position would not be too difficult to defend.