The Moscow variation

Again...that would depend on the skill level of the players. 

Im still waiting to see hands from those playing/preparing against GM's.

Black gets queen side counterplay in the nd7 variation.

Again...that would depend on the skill level of the players.

Black gets a good game.

You say this over and over but it's not really true. It depends on how much work the player has put into studying the position.

And before you and acids got into it, I said Nd7 was what I don't like seeing as white.

Im not saying anything he posted is wrong, because its not.  But stating one line is better is not a "one size fits all"  This is why i keep posting "it depends"

Since a Maroczy is easier to play for white at lower levels (and maybe higher too, but certainly at lower ratings) it may be worth suggeting 3...Nc6 (which is not a bad move, played by many strong GMs).

Blocking with knight or bishop on d7 white has the option of a Maroczy (or it may become a hedgehog, but same idea applies).

3...Nc6 would be what i would play.  You get the bishop pair, b-file, and the c56 pawn is closer to the center.

Well, white isn't forced to capture on c6, but when he does, he has the doubled pawns to play against.

Anyway, yeah, it's a game of chess as they say.

The Macrozy is difficult for inexperienced players too play, because to play it(effectively) you need to have a strong positional understanding. 

Sure, the position for both players can require patience, maneuvering, stuff like that... but black has less space and needs to find a way to play a pawn break.

The hedgehog is easier for black to play because white has to play prophylacticly.

Umm.... I don't know about that. I don't have much experience from either side of the board in a hedgehog.

I do remember some ridiculously thick book on the hedgehog that gave me in the impression it's pretty hard to play well.

If black achieves a pawn break white is worse.

The only time I played it OTB (that I remember) was 1600 vs 1600 and I had no idea what I was doing. I just held tight on the 6h rank while he pushed all his pawns... and then yeah, like you said, I got a pawn break, so now all those pawn pushes were a big weaknesses in his position, and he lost pretty badly haha.

d4 is bad

it fixes blacks pawns, and after xd4 nxd4 c5 gains the space back.

It only shows up as the main move because something had to.

d3 is the main move there.