I'm currently playing Yellow.
I of course have Pikachu which is named Sparky and a Sandshrew named Logan, thinking of what other Pokemon to put on the team.

No one even knows if there will be a lot of water if it really is Hawaii. We also don't know if they'll use the entire state or just a part of it like they did for Japan for 4 Generations.

If it's an area designed around Hawaii, it's gonna be about water and islands.
Not doing so would be akin to making an area based on Alaska, but keeping it to the lowest region possible so that it's not snowy.

*walks out of mt moon grabbing on a stick to keep my balance while Pikachu lies in my backpack covered in blood and i hold Sandshrew under my armpit.*
Fuck... Mt... Moon.

And i'm currently in the second gym and about to fight Misty, i got Bulbasaur in this town and named it Bulbi, immediately dumped it in the PC, maybe i'll use it in Moon. I also got Charmander and named it Zippo, making my team total 3.

Geez, even the official Twitter account is starting to tease us about Hawaii
https://twitter.com/Pokemon/status/704373263099523073

i can not wait to have a charizard with sysmic toss in moon and sun i mean i wanted charizard with that move in X and Y and ORAS

You can get Seismic Toss for Charizard in FRLG, it would just take a very long time to get it to XY/ORAS.

Okay so I went through the Delta episode in which you obtain Rayquaza the only difference with mine is I got the black one without any cheats or hacks. . What exactly is the encounter rate for a Pokemon like that? It was a long time ago when it happened with reshiram again with no cheats and hacks, I just chalk it up to luck or karma in case anybody wants to trade with me I'll put my friend code a little later for alpha sapphire as well as X & Y alright peace out

i know i have a ds lite with my f ire red in it originally for that reason but decided not to bother with it and now ding it for sun and moon cause it became ten times easier.

Shiny rates are I believe about 1/4500. Though some Legendaries are Shiny Locked. Rayquaza apparently isn't it seems.