Why is Movie 5 Cooler seen as stronger than Freeza?

[apex_pretador]

People say that because Cooler discovered a 4th transformation, that makes him stronger than Freeza.

Yet the moment Goku turned Super Saiyan in Movie 5, he was shown to be much more powerful than Cooler and beat him rather easily. Meanwhile when Goku was Super Saiyan on Namek, he was still shown to take a while to bring down 100% Freeza.

While Metal Cooler in Movie 6 is obviously much stronger than Freeza, I don't think Movie 5 Cooler was.

I think You're correct. I have frieza stronger than cooler at max.

Goku said Cooler Chi is greater than Freeza's, though.

This Goku is stated to be more powerful than he was since returning from namek.

But frieza was significantly weakened due to damage by KK x20 KHH and spirit bomb, then he got beatdown by goku in SS form.

I always assumed that the movie was a what-if scenario. What if Goku never stayed to train at planet Yardrat and came back to Earth directly with the Dragonballs when Porunga asked him. He did stay of course 130 days until that wish was made so he did learn the instant transmission technique which we know he could use in movie 6. Having not trained to master his SSJ from explains why in the movie he could not turn Super Saiyan at will and had to come to the brink of losing his friends to spontaneously transform.

Of course Goku could have increased the power level of his base form via a Zenkai boost and/or training on Earth (for whatever period of time had passed) resulting to the power level of his SSJ form to increase as well. If we accept that the multiplier is x50 going from 3million to 3.4million for his base would result his SSJ to be 170 million. Cooler's 4th form might had been like 100 million and his 5th form 130million (he said in the movie he discovered this transformation that gave him the EDGE over his little brother - this doesn't imply that their gap was big but rather if they fought each other he would eventually win even that meant to struggle a bit).

Good point. I see a similar scenario.
But this doesn't prove that he was stronger than frieza. Remember that frieza was damaged , so his ki was lower than it should be. Also, he has no way of knowing the 100% power of his little brother.

I'm pretty sure Cooler said something about Freeza always being ahead of him until he discovered his new transformation. So form 4 Cooler < Form 4/Max Power Freeza < Form 5 Cooler.

I'm also pretty sure goku was first person to push frieza hard enough to go to 50% and 100%. Cooler has probably no way in hell to know frieza's 100% power.
So, this goes down like :
Cooler < 4th form frieza (initial) < 5th form cooler >=< 100% frieza