Hottest female actress in classic Godzilla movies?

See, G. H. (Gman) gets it. xx

I am going with either Mothra or Biollante for this, even though I never thought about this topic much.

Kumi Mizuno from Invasion of Astro Monster/Ebirah Horror of the Deep

I’d have go with Mothra, but Megaguirus is a close second. 

Having just binged out on the 1960s movies which I hadn’t watched in over 30 years: I agree Komi Mizuno, definitely Mie Hama, and Akko Wakabayashi who struck me as so pretty even as a preteen watching for the monster fight action.

... Did not expect that one...

That being said, either Momoko Kichi, Megumi Odaka, or Elizabeth Olsen.

From the top of my head the elias sisters Lora and Moll from Rebirth of Mothra 1 and 2. I mean there are a lot of atractive women that were in the Godzilla movies.

Lora being recast in Mothra 3 was criminal...

Yeah, it is pretty hard to choose... especially when I haven't even seen most of them yet! That's why I had to put multiple...

Damn I forget which one was Lora, was she the one dressed in Blue? Because the blue Elias girl I thought was freakin HAWT and total KAWAII!!!!

... Never thought I would... hear?... read?... you yelling "KAWAIIIIIII" or HAWT... but I can't say you're entirely wrong either lol

I have a soft spot for cute Japanese actresses

I could have made a joke there... but I'm not going to.

Anyways, understandable. Though there are practically tons in the Godzilla franchise... Also a bunch of single fathers that end up having chemistry with them.

Xenotaris,
Lora was predominantly in blue. She was played Sayaka Yamaguchi in the first two Mothra movies (swoon) and replaced by Misato Tate in the third.

Sayaka Yamaguchi became a huge TV star not long after the second movie, so I assume her career just got too big for a dying sub-genre.

Ah she's the one I had a crush on