Which real life BW couple had good onscreen chemistry?

It is not necessary that real life couples have good chemistry onscreen.

Jaya - Big B, Hema - Dharam, Rishi-Neetu,  Ajay - Kajol, Akshay - Twinkle,  Aish-Abhi, Saif -Kareena, Riteish-Genelia, Ranbir-Alia , Ranveer-Deepika.  

Which real life BW couple from any generation had good onscreen chemistry? You can write those which are not mentioned here.

https://youtu.be/szVW_w-W8cQ

Reteish and Genelia

https://youtu.be/u-FaTNxrWhw

Hema-Dharmendra, Rishi-Neetu, Deepu-Ranvir.

But even better jodis were the one's who couldn't become real life couples, like Amitabh-Rekha and Raj kapoor-Nargis.

Ash and Abhishek were magical in Guru

https://www.youtube.com/watch?v=ywRFnGK0z5Y

Also liked them in Kuch Naa Kaho

Riteish-Genelia 

Originally posted by: Lord_Voldemort

Ash and Abhishek were magical in Guru

https://www.youtube.com/watch?v=ywRFnGK0z5Y

Also liked them in Kuch Naa Kaho

They were good in kuch na kaho 

Hema and Dharam, Rishi and Neetu, Ranveer and Deepika.

Abhi Ash, Ranveer Deepika, and while I haven’t seen any movies with Ritesh and Genelia but they are super adorable in all their Instagram videos they do.  These guys look great off screen too.  Amitabh and Jaya have great on screen chemistry but real life they absolutely do not, bizarre as that may be.  I think Sholay is the only Hema Dharmendra movie I have seen and they were OK in it but my mom and aunts always say they had great chemistry in all their movies.