I like my droids smart, sassy, and unerringly loyal. So these should come as no surprise. For the record, I classify androids as mostly or all mechanical, but capable of independent thought and emotion.
BB-8 from Star Wars: The Force Awakens
R2-D2 from Star Wars (all)
K9 from Doctor Who
Rachael from Blade Runner (or Do Androids Dream of Electric Sheep?)
Marvel’s Vision (have I mentioned by adoration of Paul Bettany?)
I'm a coffee-fueled, hobby-addicted bibliophage who makes cruelty-free mineral eye shadows (inspired by novels). I'm usually in front of a screen (writing, reading, or gaming), but I've been known to emerge for geekery, good food, and dark chocolate.