I am about 1500 player and i am changing my repertuaire, i decided what to play vs e4 but i am not sure how to repond vs d4, my question is, are bogo and nimzo indian easy enough to play for me? if not i would chooce slav maybe, but i think it is a bit too cramped, so i would like to avoid it.

The point is i don't wanna play any dubious opening, even benko gambit (which i think is hard to play for a win vs some variations). My goal is to improve generally, and in my opinion the best way to do this is playing reliable, not tricky openings.

... you are seriously overthinking this.  If you already know a reasonably good opening now, stick with that.  In all my life, every 1500 player I know that picked up a new opening never ended up actually getting any better in the opening phase, and ended up just wasting time they could have been using doing tactical puzzles.  Otherwise, pick any opening you can easily wrap your head around (classical defenses are especially good for this) and stick with it.  Alternatively, choose a sharp opening to develop tactics more quickly.

But if u play crap like accelerated dragon u should change opening:) coz u dont play sicilian to play such a drawing and boring opening, and other sicilians are too complex, so i sticked to style i played 1year ago, mainly open games. Vs d4 i played benko gambit, when white pushes e pawn there are massive exchanges with weaknesses on both sides, probably a draw, and many white players do that, so again, it has to be replaced by sth else, and as i have never knew good system vs d4, it's time to learn:)

no no, the accelerated dragon is fine.  Somebody at my club uses it against everyone quite frequently and has a lot of success with it.  He actually doesn't have much success with the opening against me (keeps running out of moves!  Suckkerrr...).  But did he go off and study a new anti-5pin opening system?  No, he just started pummeling me in the middlegame.

The benko gambit IS a good system against d4.  If you argue that you can't play it well, I argue that thats all the more reason to play it.  The benko gambit is rich with attacks and tactics, two things that everyone needs to know.  Heck, even petrosian was an excellent attacker, he just preferred using the THREAT of an attack as opposed to an actual attack =P.

The Nimzo/Queen's Indian are easy to play and very solid. Some good introductory material might be Jacob Aargaard's 2-DVD repertoire set from chessbase.

Nimzo

Queen's Indian

Eric: thx i didnt know there is a movie about nimzo

5pin: Benko is rich in tactics only if opponents allow them, problem with the benko is that in our times openings are so popular that almost everyone knows good responds to it, i dont say benko is unsound, i say it is hard to play for a win, coz benko just doesnt fight for the centre, i omitted here situations when white decline the gambit and it is more like benoni, which i dont like

I dont say that on my level there is no drawing openings:) i played accelerated dragon and i know there are, and even i should win i am searching opening which will be suitable as basic weapon even on higher levels, i dont wanna be 1500 forever:)

i like to play and am now working intently on the KIA

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I disagree, OTB I have a ridiculous score with the benko gambit because no one studies it and therefore no one knows the best lines. Basically there is only 1 line that gives black any serious problems, and the moves in that line are so counterintuitive that no one would ever come up with them OTB.

can u show me this line?

anyway look at this one

I am talking about this position, black probably regains his pawn and position will be absolutely drawish, of course Qb6 after Re1 isnt only move, but it is my choice, after Qa5 pushing e5 is suppose to give white advantage, there is also Ng4, but i didnt play that line.

play the nimzo!

But remember that Indian defences are the most popular reply to d4 and there will always be a huge amount of theory associated with them. I would say Nimzo is far less 'tricky' than Benko, plus you don't gambit a pawn.

Bent Larsen once commented on defences to d4 "If Black is not to leave the initiative to White during the first part of the game, he must take a certain risk." So, pick your risk and work with it :P