Nf6 or d5?

Hi there!which is better against d4?d5 or Nf6...what do you guys play?

Play d5 until you don't have to ask the question.

As far as "which move is best?", the two moves are about equal in worth. Play the one that you feel more comfortable with.

I'm more comfortable with Nf6, so I play that.

is d5 more solid for black?

what is he ultimate difference between the 2?

1. ... d5 is solid and tries to meet White's opening head-on. Because it is a symmetrical line, it limits White to a small advantage; but makes it very likely that he will get that small advantage.

1. ... Nf6 is assymetrical and unbalancing, and offers both White and Black more play, and more chances to go wrong. Bigger risk, but bigger potential reward.

I prefer unbalanced positions, especially as Black.

I used to play Nf6...loved it but now im not so sure about it...Is the modern Benoni defence bad for black...?

From what I gather, the modern benoni is risky and lost popularity due to the taimonov

Taimanov?dont think ive ever seen the variation

It is the one where white pushes f4. 

oh and got pawns on d5,e4 and f4?that really cramps black

If you like to play imbalanced positions like the benoni and nf6, why not the dutch.

Mikhail Tal also played it if i am not mistaken?

I have thought about the Dutch countless times...somehow f5 scares me haha

you can use Nf6 to try to avoid some exchange variations against the QGD if you plan to continue with d5 later anyway.

Nf6 isn't necessarily unbalanced anyway.

that just transposes into the QGD?

would the main line kings indian defence be better than the modern benoni in any way?

Exactly.