Hi WildMoose,
Here are the skills:
Ranger Sight (Passive)
Grants you the keen eyesight of a ranger to help you see your enemies from afar.
Level 1 Increase sight range with 1.
Required level is 6.
Level 2 Increase sight range with 1.
Required level is 12.
Level 3 Increase sight range with 1.
Required level is 18.
Level 4 Increase sight range with 1.
Required level is 24.
Level 5 Increase sight range with 1.
Required level is 30.
Elven Sight (Passive)
You can see further and thus target and attack your enemies from afar.
Level 1 Increase sight range with 2.
Required level is 1.
Level 2 Increase sight range with 4.
Required level is 5.
Level 3 Increase sight range with 8.
Required level is 9.
Level 4 Increase sight range with 10.
Required level is 13.
Level 5 Increase sight range with 12.
Required level is 17.
This is probably all the information you'll need on these two skills. I agree. It doesn't seem to make sense why a skill that requires a low level gives a better bonus. Nevertheless, Elven Sight is better than Ranger Sight.
Thanks.