At your level, piece exchanges should hardly give bigger chances of a draw. Could you give an example game? Perhaps you should just improve your endgame a little and win them all.
I think the Dragon is much better for you than the Najdorf. The Dragon is more logical, pieces go on the same squares in different lines, and Black's attack on the queenside is very natural. The Najdorf has no logic, just moves that work or don't work not because of some general principle, but because of pages of analysis. Besides, "1 bad move and game over" is of course only true in main lines, but in that case, it's more so in the Najdorf.
If you spend three years learning the Najdorf, you know a bit of the Najdorf. If you spend three years learning other openings, you know a bit more about chess :-)
So, i played accelerated dragon but i feel that it is causing too many exchanges and there are bigger chances of draw, which i dont like, coz it is not main reason of playing sicilian of course:)
now i am searching another variation of sicilian, dragon seems too risky for me, 1 bad move and game over. I am thinking about 2 variations, najdorf and pelikan.
In pelikan 1 big advantage is that if white doesn't move knight to b5, i play Bb4 and pressure on e4 pawn is so big that i would already prefer black position, but i don't know if main line is suitable for me
However, i suppose that main lines of najdorf are ok for me, but i wonder if less known variations would give me easy chance to exploit them like Bb4 in pelikan does. The point is that people on my level(about 1500) won't play main lines anyway, so it is quite important factor. If answer is yes i will definitely choice najdorf, if not decision will be a bit harder:)