At level 1, Elven Sight twice as good as Ranger Sight. At higher levels, the difference gets greater.
Elven Sight (Passive)
You can see further and thus target and attack your enemies from afar.
Level 1 Increase sight range by 2. Required level 1
Level 2 Increase sight range by 4. Required level 5
Level 3 Increase sight range by 8. Required level 9
Level 4 Increase sight range by 10. Required level 13
Level 5 Increase sight range by 12. Required level 17
Ranger Sight (Passive)
Grants you the keen eyesight of a ranger to help you see your enemies from afar.
Level 1 Increase sight range by 1. Required level is 6
Level 2 Increase sight range by 1. Required level is 12
Level 3 Increase sight range by 1. Required level is 18
Level 4 Increase sight range by 1. Required level is 24
Level 5 Increase sight range by 1. Required level is 30