Neutral:
* Comment on
* Evaluate
* Assess
* Analyze
* Examine
* Review
* Discuss
* Dissect
* Scrutinize
Negative:
* Condemn
* Reprimand
* Chastise
* Rebuke
* Berate
* Scold
* Denounce
* Attack
* Fault
* Find fault with
* Pan (especially in the context of reviewing art or entertainment)
The best synonym to use depends on the specific context and the intended meaning.