I'm not entirely sure what you're asking so I'm gonna try to answer every possible question you could be asking.
>Strongest Pokemon in Gen 2
Snorlax, followed by Zapdos.
>Strongest Pokemon in Gen 2, released in Gen 2
Raikou, according to Smogon's viability rankings.
>Strongest Pokemon released in Gen 2, across all generations
Skarmory, maybe. It's been solidly OU in every generation and has always had a place on teams (whereas Tyranitar has only had niches as a pursuit trapped and later sand setter for Excadrill).
>Strongest Pokemon released in Gen 2, statistically speaking
Ho-oh and Lugia are tied for 680 bst.
>Pokemon released in Gen 2 with the highest Atk stat
Tyranitar
So, if you specifically meant "best" as in "highest attack stat", then yes.
