Surveillance is Better Than Discordance. Change My Mind.
After many games with both perks, I've come to the conclusion that the perk Surveillance is a better gen-protector/tracking perk than Discordance and here's why:
Discordance is very easy to spot, since most killers go directly to yellow-aura generators, and Survivors make note of when the killer appears. Especially with how many Survivors are actually on a generator. This makes it only really useful at the start of a match.
Discordance becomes worse as the game goes on. As you start to lose Survivors, the remaining ones are less likely to work on the same generator, save the last generator when it's a SWF team and it's almost done. This was also more important before the introduction of ECG as the last survivor might have actually had to work on generators.
Most people currently don't expect Surveillance. Since it's currently such an underused perk, most people don't really know of it's existence. This means that someone is currently able to more easily capitalise on greedy stealth Survivors who try to get the gen done after you leave.
Better map knowledge. After you kick a generator, it's aura changes and you can more clearly see which generators have been worked on/are regressing. This can help you figure out which parts of the map to move to next or patrol in order to find and catch out Survivors.
LOUDER GENERATOR NOISES. Generator repairs are more audible with Surveillance, since the range of their noise is increased by 8 meters.This is valuable, as you now don't have to get anywhere near as close to a generator, giving yourself more time to go and protect other generators if someone isn't working on that generator. I swear it also increases the volume of the generator repairs, but I could be losing my sanity again. At time of post, I work in liquor retail and it's almost Christmas.
Please note that this is not for ALL killers, as I still believe that in some more niche cases, such as the Legion and the Shape, that Discordance is better because their power level increases when their powers are able to be used against multiple survivors, and these attributes are especially amplified on Stealth-type killers since it's easier to capitalise on the knowledge seeing as how it's harder for Survivors to detect you. Mobility killers will benefit more from the aura effect than the noise generation too, seeing as how they generally don't rely on masking a terror radius.
Do you use Surveillance? Do you prefer Discordance, as it helps find more Survivors early game? Did I possibly change your mind about this perk? Let me know and let's debate the merits, and flaws, of each!