After seeing last weeks episode I have to ask why are so many people determined to love Jaime and hate Dany considering Jaime at his best is morally ambiguous and at his worst villainous while Dany has freed tens of thousands from slavery?

Because Dany’s also kind of morally ambiguous? In the books, she’s ordered people tortured because she was pissed off about the murder of a freedwoman she liked and didn’t care how she got intel on the Sons of the Harpy. On the show, she’s had people roasted alive by dragons to prove a point. 

I’m less on the Jaime redemption train than others, but he is not the only morally grey character in ASOIAF.