Pokemon
Finally we can look at their individual Pokemon, and this category is honestly the hardest to compare. Why? Well since Origins is a four episode special focused almost exclusively on Red and his Charizard, we barely have any idea what his other Pokemon can do.
In the case of Ash Ketchum even a Pokemon like Kingler, who was used in only two battles in the entire run of the anime, still has enough feats (and impressive feats at that) that I feel comfortable giving them a respect thread. What about Red? Out of all of his Pokemon, how many even have enough feats to justify a respect thread? In my opinion, 2. Charizard and Mewtwo. Behind that, the only Pokemon that might even quailify is Jolteon but even then it only has about five or six feats and none of them are all that impressive.
So if we have so little information, how can we even try to compare the two's Pokemon? Well there is one other thing we know about all of Red's other Pokemon. We know that they are all much weaker than Charizard and Mewtwo. The battles that best illustrate this are the Giovanni battle and the Mewtwo battle.
In the Giovanni battle, Red battles against the head of Team Rocket Giovanni for his eighth gym badge. This battle ends up being a 2v6, with Red using six Pokemon while Giovanni only uses two. For his first Pokemon, Giovanni uses a Rhyhorn that proceeds to utterly destroy Red's Team. It takes out his Victreebell, Kabutops, Snorlax, and Jolteon (using a thunderbolt attack no less), before finally tying with Red's Hitmonlee.. After this, Red is left with Charizard. Giovanni then sends out his next Pokemon, which is a Rhydon. If you don't know Rhydon is Rhyhorn's evolved form, and is presumably much more powerful than Rhyhorn. It also has a massive advantage over Charizard in terms of type (fire/flying is quad weak to rock, and rock resists fire and flying). Despite this, Charizard manages to beat Rhydon in a one on one battle.
