Lost is my personal favorite network TV show as well, and I prefer Lost. During its first three seasons, Person of Interest definitely felt like it might be competing with one of my top spots and giving Lost a challenge, but I was less of a fan of some of the developments in the last two seasons, which dropped it down. POI is probably around my 13th favorite network TV show. If you drop animated shows and shows that didn't get a planned conclusion, it might be my 6th favorite. So it's up there for me, but I did have some issues with it as it went on.