In the Pokemon Universe, it's Mew
But in the real world its' unknown , though some would say Celebi because it was only available 2 or 3 times since it was introduced. (outside of Gen V)
arceus because you think he would not be in it
Hmmm... Well.... I think Mew is because it can learn any move.
none, arceus rules
The strongest legendary is Arceus
The best is pretty much all legendary cards da
chad is the best!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
grovile
Unfezant and swoobat
Flygon, donphan or rypherior
That's a matter of opinion(myne is Giratina)
the legendary bird articono
depends whats the Pokemon your wanting?
The best Legendary Pokemon with the best stats is none other than Mewtwo.
Rygar: The Legendary Adventure
the best legendary basketball player is kobe.
Well there is no such thing as the best legendary, everybody has his own tastes. The higher leveled legendary you find here is Mewtwo.
zapdos is the best
the best fire type legendary is Ho-Oh the best fire type non-legendary is Arcainine
Zekrom is the best electric legendary Pokemon period. Its not a opinion, its a dead fact.
there are many legendary Pokemon in Pokemon heartgold, but the best is HO-OH
The best gear in fate is the Legendary Elphame armor. The best weapon for the online game is the Legendary Elphame sword.