

Fantasy battles!!! So who would win at their peak, final appearance?
Miki was 23 during her final appearance. Asagi was 20 in her final appearance. Both have a heart rate of 100-170 bpm so their cardio puts them at a walking speed of about 11:44 per mile. Depending on what kind of shape their fast twitch muscle fibers are, their speed should be about equal.
Miki was in G-Force, so one would assume she's in shape. However, Godzilla vs. SpaceGodzilla insinuates she has little to no combat training. Asagi doesn't either, but she does have more of an upper body on Miki as well as two inches of height on her. Her BMI is clearly higher than Miki, though neither are overweight. At best guess Asagi's BMI is at 38 and Miki's is around 36. Given Asagi's more impressive upper body, this gives her a slight edge and also suggests her fast twitch muscle fibers are stronger, assuming her legs match her upper body.
Now Miki does have the ability of telekinesis which more than makes up for her slightly smaller frame. The problem is it tends to take a great deal of time and energy to move anything. While Miki may be able to move a few objects before Asagi bludgeons her at sprint speed, I question how quickly or efficiently the objects might move.
Both also have high pain tolerance, having been deeply affected by psychic strains on their minds and bodies. Both seemed okay after a quick nap, but unlike Miki's post-nap in Biollante, Asagi continued to take a physical bruising when she woke up--She was still conscious by the end of Guardian of the Universe. She's also been able to survive falling debris in the train station during the climax of Revenge of Iris. But to be fair Miki survived an electric shock to the head in MechaGodzilla 2.
So Miki withstood the recoil shock of something that had to explode at least 10-15 meters in length of muscle tissue. Modeling this after a large car, that would be 10-15 megajoules of energy. Likewise, however, if Asagi was really feeling all of Gamera's pain, she was theoretically experiencing the same deep cuts, gashes and loss of blood he was. To quote her, "I share his pain." Even if that quote means the pain was cut in half, using Gamera's height and weight, she could be withstanding an estimated 2.5-6 million newtons of pressure. Which is impressive since the human body can only withstand just over 2,000 newtons. Now it's unrealistic to assume she was literally withstanding that much energy bludgeoning her, but more likely she was withstanding the feeling. Making her pain tolerance far higher than Miki's, but Miki is literally more durable since she withstood a shock that could destroy 2-3 cars.
Discuss!

UHHHHHHHHHHHHHHHhh....
Zwei Wing is the best singing duo. Change my mind.

The real question is who is better at brawling and close range combat?

Asagi
If people weren't lazy, we wouldn't try to be efficient. If we weren't efficient, we'd never get anything done.

Asagi
If people weren't lazy, we wouldn't try to be efficient. If we weren't efficient, we'd never get anything done.

Oh boy, a chick fight. Lol :)
But in all seriousness, it depends on who is better in combat, but by themselves, I would say Miki, only because she was still alive despite being in very close proximity to the radioactive Little Godzilla in Godzilla vs. SpaceGodzilla and Burning Godzilla's nuclear meltdown (which should still kill a normal person due to just being in the vicinity) in Godzilla vs. Destoroyah, and need I remind everyone that nuclear radiation is much more lethal than Mana, not to mention that Heisei Gamera almost died from the nuke that destroyed Sendai, while Heisei Godzilla survived blowing up all of the uranium deposits on Birth Island.

Host of the podcast Giant Monster Messages where we watch EVERY giant monster film and look for the messages.