This episode is pretty much exactly the reason why I loved s1 of this show so much. Because I'm such a sucker for these scenes. Sawyer telling Jack about his dad, Bernard and Rose, Des and Penny. When Lost delivers, it delivers.
Also, y'all know I love the timetravel more than is reasonable. (Which reminds me that I really should say a few things about The Sarah Connor Chronicles at some point, besides the rampant slashiness, but I'm still a little pissed off about the amazing stupidity re: the bloodtypes and I haven't seen the latest ep yet.)
And this episode also confirmed it for good: Desmond is my favourite. (Sorry, Sawyer.)
Just. *flails*