Why do some skills completely out shine others? Specially Newer abilities?

For Example.

Ability 1.

basic attacks grant Focus, stacking up to 4 times. Stacks last for 4 seconds, after which they fall off one at a time every second.

Once reaching 4 stacks, can activate Ranger's Focus to consume all Focus stacks, granting 20 / 25 / 30 / 35 / 40% Attack Speed and replacing basic attacks with a flurry of arrows resulting in 1.05 / 1.10 / 1.15 / 1.20 / 1.25 of her Total Attack Damage per attack for 4 seconds.

Ability 2.

surrounds herself with a storm of feather-blades for 4 seconds, granting her 30 / 35 / 40 / 45 / 50% bonus attack speed, 20% increased damage on her attacks, and 30% bonus movement speed for 1.5 seconds whenever she attacks a champion.

If X is nearby, he will also gain Deadly Plumage, in turn increasing the bonus damage on each of them to 40%.

Both abilities serve the same purpose, but one completely out shines the other.

1. the First requires at-least 4 attacks before being able to be activated, where as the second can be activated at any time.
2. The First gives less attack speed at all ranks.
3. the First increases the damage by less at all ranks but the last. -15/-10/-5/0/+5 %.
4. If the Second has a certain ally champion nearby he also gets it PLUS it increases the damage bonus to 40%, 15% more than max ranked ability 1.
5. the second gives a movement speed burst.

I know champions are balanced around there entire kits, but when abilities are literary identical except for one having higher stats it just really bugs me.

I'm not complaining about either champion, cause its obvious who they are :P, just simply pointing this out.