If you have legendary's from other games which you like , transfer them when you have beaten the game. Or use pokemon codes and stuff.
Ditto.
each pkmn has its own advanages & dis atvantages. chose wich ever one u like
rayquaza
Pokemon snap or Pokemon emerald
you evolve a duskull at lvl 37 one of the best ghost Pokemon on emerald
torchic
yes he is probably the best pokemon in pokemon emerald
the best Pokemon region is hoenn { ruby,Sapphire,emerald }
unfortunately haunter isn't available on pokemon emerald. However if you want to capture ghost type pokemon, sableye's a good choice....you can also choose castform..
chincypops
rayquaza and mew!
in emerald its torchick