Who's the best Pokémon

[MyCharIsHard]

Hey guys! I’m collecting data for my EPQ which is based on which Pokémon can be considered the best and I’d like your opinions with a few reasons as to why. Please refrain from legendaries! Thanks!

 

[Guzma]

There's no real "best pokemon". There are some that are better competitively, but no Pokemon, not even Legendarys, is all-powerful - I managed to have enough sheer dumb luck to win against a rain team back when I had a team composed entirely of Pokemon with mediocre to terrible speed. That said, technically Mega Rayquaza is the "best" since it's so ludicrously OP that it was banned from Ubers.

 

[SirOni]

The answer to "Who's the best Pokemon?" is also the answer to "Who's you're favorite Pokemon?".

True fact.

 

[Lone_Garurumon]

The "Best" Pokemon is an interesting question, as one could consider their favourite to be the best, or they could consider, objectively, the base stat totals and potential abilities and movesets.

That being said, my favourite Pokemon (if we're going by that viewpoint) is Lucario. The reasoning for this is pure personal attachment. During my Platinum playthrough, I received a Riolu from a friend (I was too young at the time to realize that it was a hack), who became a wonderful partner throughout the entire game (perfect IVs, optimal EVs, and enhanced growth rate from a trade). He was critical in defeating most of the gym leaders and elite four. From that point on, Lucario became my unshakable favourite. The fact that it's based on a wolf helps too.
If we're using the objective viewpoint, it would have to be a competition between Mega Rayquaza (for reasons stated above(780 BST, great movepool, ability that negates all weaknesses of the flying type)), Mega Mewtwo (both forms) (780 BST, massive speed and attacking stats, very respectable movepool), Primal Groudon (this one may just be from personal difficulties) (770 BST, decent movepool, ability that absolutely negates all damage from its only 4x weakness (leaving it with only a 2x to ground)), and Arceus (720 BST (this is without a higher form), 120 in each stat, garunteed 100 base power STAB, decent movepool). Beyond those points it's very difficult to nail down a true objective "best" as each of these do have certain downfalls.

Also, what's an "EPQ"?

 

[Arceus the Dragon]

Mega Rayquaza, Mega Mewtwo X and Y, Primal Groudon, Primal Kyogre and Arceus.

 

[Destructive Idiot]

Disregarding legendaries, probably Blaziken (although others might argue Greninja or Aegislash).

 

[Guzma]

Charizard is the best! Everything except the originals SUCKS!!!

... I feel like punching myself for saying that. Speaking objectively, it's Mega Rayquaza. It has no real counters other than itself. Smogon had to boot it into its own tier because it was too good for Ubers.