Elven Accuracy gives you "super advantage" via a mechanic that lets you select the best of three dice rolls when you have advantage on an attack. This is widely regarded as a very strong, if not broken, feat. The truth is that the "super advantage" part of the feat doesn't do that much, because already having advantage is normally good enough.
I recently ran a poll asking players what races they thought should have Darkvision. With over 2500 responses in the first 24 hours, players expressed strong sentiment that many of the races should have their Darkvision removed or modified from the rules as written ("RAW"). Here are my observations, as well as a chart identifying what races have Darkvision by popular demand.