Well im starting ruby again

[DragonsRage19]

And i was wondering what pokemon should catch before the first gym the list of pokemon i want are

Poocheyna
Ralts
Tallow
Nincada
Aron
Electrike
Skarmory
Zangoose
Sharpedo
Absol
Xatu
Gyarados

[Poryhedron]

Well, before the first Gym you can't catch most of those. The pokémon you can catch before you take on the first Gym are:
Zigzagoon
Wurmple
Poochyena
Surskit
Ralts
Seedot (since you're playing Ruby)
Taillow
Wingull
Shroomish
Slakoth
Skitty
Nincada
Whismur
...and you can get a single Makuhita in Rustboro by trading with a trainer who wants a Slakoth.

Since only four pokémon appear on both your list and mine, you might as well go after Poochyena, Ralts, Taillow and Nincada...though there are certainly better choices out there to deal with Roxanne's Rock-types...maybe you should choose Mudkip as your starter.

[Kari and Mewtwo]

Ralts is definately good later on in the game, especially against Brawly, Winona, Tate & Liza, & Wallace (presuming you taught t-bolt & calm mind)

nincada helps if you want ninjask for baton passing, but you can also use shedinja and make yourself immune to Brawly, Wattson, Wallace, and even Kyogre.

Aron you get after the 1st gym, but aron REALLY helps. I remember using aron to take down Wattson, Flannery, Norman, Winona, and Tate & Liza.

[DragonsRage19]

thanks y'all

[DragonsRage19]

Bumpage

[Poryhedron]

...why are you bumping this? Your question was answered. Is there something else you still need to know?

[Riven]

How about you catch all the pokemon you can in each area?

[ShockingAlberto]

The only problem with Aron is that they're difficult to use later on in the game. They're stubbornly late to evolve and, until they become Lairon, might be stuck on the backburner in any gym that uses special attacks (and even some that don't). They're good to raise, but I recommend a post-game raising through the Elite Four. Otherwise, it may not be as powerful as it could be as an eventual HM Slave.

-- ShockingAlberto

[Riven]

Or you just take the time to train it and resist turning it into a HM Slave.

If you want a really powerful one then you should take the time to train it, despite how hard it is.

Personally I say take the time, it aint going to kill you.

[DragonsRage19]

i thought rpgs were all about training anyway