In Pokemon black and white
In black 2 you get Zekrom, Black Kyurem, Latios, Electibuzz and get to go to Back City. I white 2 you get Reshiram, White Kyurem, latias, Braviary and get to go to White Forest. In Black City you can vs high level Pokemon trainers and buy more items and in white Forest you can catch some Pokemon that you can't catch in Black 2. The rest of the game is the exact same so you decide witch one is better.
No. Brock will be excluded in Pokemon Black and White as there are new Gym Leaders!
As for the legendary Pokemon, depending on what type of Pokemon you prefer, Zekrom or Reshiram would both be acceptable. Zekrom is Pokemon White's cover Pokemon and is an Electric/Dragon type. Reshiram is Pokemon Black's cover Pokemon and is a Fire/Dragon type. For the games however, the version specific Pokemon are Throw and Pitilil (white) and Sawk (black). So it's still a toss up. I personally suggest black. -In terms of battling Pokemon besides there counterpart, reshiram holds a slight advantage because he has a better movepool and typing. If they were to battle each other, it really would come down to these few things: nature, IV, and EVs (since both share the same base speed value). Something to note is that Although Zekrom has a natural advantage against water type, Reshiram can one hit most water types with the exception of Kyogre.
the pokemon black and white 2 are going to cost the same for the 3DS and the normal DS but on the 3DS it has been told that it will look somehow better.
Zekrom (the black dragon) is found in Pokemon White.
ice and dragon
The legendary mascots for Pokemon Black is Reshiram the white dragon one. Pokemon White is Zekrom the black dragon one.
Unfortunately you cannot obtain Reshiram (Dragon/Fire) in Pokemon White, rather you can obtain Zekrom (Dragon/Electric). In my opinion, Reshiram is better, so i got Pokemon Black.
Reshiram, the legendary Dragon-Fire type Pokemon from the 5th Generation of Pokemon games. Available in Pokemon Black in N's castle, and available in Pokemon White only through trading with the other version.
in the giant chasm
Pokemon black by far. but if you have a choice between Pokemon black or Pokemon white get white. you can get more Pokemon in white than black , plus there is white forest and you can get rare Pokemon there i think
There's no TM for Dragon Rage.
Zekrom. It is Pokemon White's mascot, NOT Pokemon Black's, as a common and logical error states BUT its vise versa in pokemon black 2 and pokemon white 2 so if u want to get a zekrom (advise: hes better) i suddegest pokemon black 2 but pokemon white 2 is a better game
Reshiram - Dragon/Fire Zekrom - Dragon/Electric Kyurem- Dragon/Ice
Dragon type is a supereffective type against dragon type