what do u think was the greatest season finale of lost? and what was the greatest cliff hanger?

i think season 3 finale was one of the greatest, when they had to blow
up the dynamite and when SPOILER charlie dies, and at the end when u
find out that jack and kate made it off the island. that was one of
the biggest cliff hangers in my case.

and the end of season 5 when juliet detonated the bomb. that was one
of the greatest cliffhangers. but im wondering what u guys think.