Havoc Demon Hunter Frequently Asked Questions — The War Within (11.2)

Aldrachi Reaver is the stronger option of the two in Season 3. It provides better priority damage, strong cleave, and similar AoE to Fel-Scarred, making it significantly more flexible.

At its very base, Fel Rush's damage increase in a single target is negligible, and any uptime lost by casting it and moving out of melee range will be very detrimental and, as such, is not advised.

Yes. Eye Beam is tuned around the long 40-second cooldown and deals high damage, which causes it to be worth casting above your other resource spenders at all times. There are a number of effects tied to it (especially for Fel-Scarred), so unless you really need to hold it for upcoming adds try to adhere to your cooldown cycle.

In absolutes, no. They are, however, nowhere near as punishing to play around as they were in the past. The gain relative to just not playing it is quite small, so if you really don't want to deal with the movement you can easily just stick to a no-movement build.

Yes. the additional damage granted by Flames of Fury makes it a powerful AoE tool, and even in single-target, it is used as a backup Fury generator when you do not have access to Felblade. Aldrachi Reaver also uses this as an additional Soul generator.

Know Your Enemy affects everything, including damage procs caused by trinkets, making it very powerful.

The answer to this question in any context will always be to simulate it. This is because what is an upgrade for you may not be an upgrade for someone else. In other words, there is no such thing as a one-size-fits-all answer, even when talking about 2 completely identical comparisons from you to another person. Everything in your gear has an effect on everything else.

This applies to gear, set bonuses, trinkets, and, in certain circumstances, talents.

The only exception to this rule is when a specific fight dictates a certain set of optimal talents and gear pieces that enhance their strength. If you are curious about what kind of setup to go for a specific fight, WarcraftLogs.com's rankings and statistics are a good place to see what others are doing.

We have a guide on how to sim yourself here:

For Havoc, there is no strict "amount" or breakpoint of any stat that you are required to reach. Nor are there any points at which a stat stops being desirable. In the majority of cases, the specific secondary you have is less important than the volume. This is, however, another case of a situation in which a simulation done to check your ideal gear pieces and stat values will provide you invaluable information.

Due to there only being one choice per faction as a Demon Hunter, there is no choice to be made outside of whether you are Horde or Alliance.