user5784: Which current top player (at least 2600 ELO) does not avoid complicated positions
 in important classic tournament games, even if they are risky ?
This is closely related to the question which player is most aggressive and
 compromiseless.

user4543: Topalov definitely. See his games at Gibraltar especially against lower rated opposition.

user4362: As wrote in my answer to your other question: Jobava and Mamedyarov play very aggressively. 
Ding Liren and Arkadij Naiditsch are another two top players who regularly risk absolute chaos on the board. 

5784: <p>Which current top player (at least 2600 ELO) does not avoid complicated positions
 in important classic tournament games, even if they are risky ?</p>

<p>This is closely related to the question which player is most aggressive and
 compromiseless.</p>
 4543: <p>Topalov definitely. See his games at Gibraltar especially against lower rated opposition.</p>
 4362: <p>As wrote in my answer to your other question: Jobava and Mamedyarov play very aggressively. </p>

<p>Ding Liren and Arkadij Naiditsch are another two top players who regularly risk absolute chaos on the board. </p>
