For me it really depends on my mood.
There would be evenings when I want to just kick back and enjoy some of my childhood memories with Bud Spencer and Terrence Hill or one of the 70s kung-fu legends, or maybe a classic animated movie.
At other occasions I want to show off my weird and artsy collection to my friends and we screen and discuss a lesser known gem. Or do a thematic binge.
And on special nights I enjoy getting lost in the moment when Rachel taunts Deckard for the first time during the Voight-Kampff test.