Average through much of it until the last couple of minutes. That was excellent. Didn't expect the twist with Farraday being shot by his own mother but I'm not surprised that Widmore is his father.
The question is...do they really want to prevent the crash? Kate will be in jail, Locke will be crippled, Sun and Jin will be trapped in a dying marriage with Jin still working for her father, Jack and Sawyer's lives will continue to suck, etc. I guess the needs of the many outweigh the needs of the few.