I started off not liking Genny at all, but by the end of S2, he has easily become my favorite character. He has really developed quite a lot. The actor who plays him is phenomenal as well. Those crazy eyes man...
Ciro until episode 2 of season 1 Malammaro until the end of season 1 Genny from the beginning of season 2... Patrizia until she moved to live with the Don...