Most colloquial form of "Sino ang magagandang babae?"

(edit: total from all input, including this site)

Question for native Tagalog speakers or advanced learners: Which is more colloquial?

1) Sino ang magagandang babae? 2

2) Sinu-sino ang magagandang babae? 2

3) Sino ang mga magandang babae? 2

4) Sinu-sino ang mga magandang babae? 

5) Sino ang mga magagandang babae? 3

6) Sinu-sino ang mga magagandang babae? 1

Hey! So I asked around... and only got a few bites. 

https://cdn.discordapp.com/attachments/666259883569446922/712040411623063582/unknown.png

 We all agree that 3) Sino ang mga magandang babae? has some level of casual-ness to it.

Will update if any more answers come through when it isn't dawn :)!

Thanks. I put it on reddit, and asked some teachers too. There appears to be no consensus, which is fine I guess.