There is no 'best' Pokemon in Pokemon sapphire. Each Pokemon has its own advantages and disadvantages. However, in terms of average base stats, the best Pokemon available in Pokemon sapphire are legendaries Rayquaza(found at Sky Pillar after beating the Elite 4), Kyogre, and Latias(Roaming Hoenn) and psuedolegendaries Metagross(evolve beldum given by Steven) and Salamence(evolve bagon found at meteor falls).
POKEMON PLATINUM stupid!
get the ruby and sappire in fire red and trade him
No, and I'm pretty sure he's never gone out with a "Sappire".
ABXY
Sadly, no. The creators of the game forgot to add in the Pokedex, so trading is impossible without GameShark. :(
no
use action replay
you make them with berries
dfg tyhgtg
You can download it at 4 SHARED.
at mt. pyre
yes there is. just fly there if you can