Differences between Kamen Rider W and Kamen Rider OOO

Today We are going to compare

And

DOUBLE

1. Two guys who transforms into one rider with a cool-ass bike
2. Uses Gaia Memories stolen from the Antagonists.
3. Fights against antagonistic group called the Museum who uses Gaia Memories to wreak havoc on the city.
4. Has a berserker state called FangJoker.
5. Aided by a rogue member of the Museum.
6. Has a shitload of forms on account of the Gaia Memories with Half-Changes.
7. Has a partner who starts out initially wary of the main rider. (Ryu Terui/Accel).
8. Has a main female lead who starts out annoying then becomes a good friend/companion. (Akiko Narumi)

OOO

1. One guy who transforms into one rider with a cool-ass bike.
2. Uses Core Medals stolen from the Antagonists.
3. Fights against antagonistic group called the Greeed who uses Core/Cell Medals to wreak havoc on the city.
4. Has a berserker state called PuToTerano Combo.
5. Aided by a rogue member of the Greeeds.
6. Has a shitload of forms on account of the Core Medals with Combos and random combos.
7. Has a partner who starts out initially wary of the main rider. (Shintaro Gotou/Birth2)
8. Has a main female lead who starts out annoying then becomes a good friend/companion. (Hina Izumi).

The similarities DOES NOT END THERE. The biggest similarity is this.

Has a shitload of merchandise to sell to kids.

There. my review of Kamen Rider Double and OOO.