In my opinion: Kyogre > Groudon > Rayquaza

And for you?

R > K > G

3rd and 4th gen still have the worst legendaries

Are you serius? D:

IMHO, 3rd and 4th gen have  best legendaries, Oh come on!

K>R>G
This trio and the Regis rule! In fact, all Gen III legendaries are amazing IMO!

If i remember correctly the first two are not included in the game out of the box. But yeah, they look pretty awesome.

R>G>K no competition for Rayquaza

Groudon > Rayquaza > Kyogre

Gamera > Kyogre > Rayquaza > Groudon

Edit: Wasn't Rayquaza a member of the Wu Tang Clan?  Also, he kind of reminds me of Abullah the Butcher.  

Rayquaza above all!

i used to like kyogre over groudon. strong special atk, STAB water sprout and rain boost make it a king.
but now groudon is fire/earth that doesnt take any water damage! fire stab with sun!!!

so, im into groudon now.

never caugth a rayquaza before.