I'd say c-64 cuz I heard it had a porno game on it 
those the amiga had as well, and with much sharper optic though

but the 64 is my fav, since it had the best sound chip ever developed > SID. sheer unbelievable what people like tel jeroen, matt grey, rob hubbard, tim follin, martin galway, chirs hülsbeck, ramiro vaca and all the others out there, could took out from that little analog chip. sound i'm still listening to nowadays almost daily
