I freaking love Orphan Black. The best part is the actress is so great you can actually differentiate the clones even when they look completely the same or pretending to be one another. xD It's weird, but awesome.
For a favorite clone I'd have to pick Helena, her silly talk gets me cracking every time she's on the screen. Right behind her would be Cosima, who's just so smart but chill and fun, and Alison who made a complete turn from a harsh soccer mom to... things I would have never imagined her do (don't want to spoil it for folks too
). I'd share some favorite lines but I don't want to spoil things for people who have not watched it.
The best part is I can say the show got better and better with each season. When the new male 'counterpart' plot was introduced, I had some issues adapting to the new plot and was worried they had ruined the show for me. But all is great again, I just need more episodes. And mangos!!
Scene-wise I love them all, but my favorite ones are those which include multiple clones, whether the dance party or the dinner. It's awesome seeing the same actress portraying completely different people on the same screen.