For Me this is the worst season of smallville because it really starts off looking great but then fizzles out and Clark is Still at the Farm doing nothing. The New Character Kara starts off quite interesting but the writers seem to quickly lose track of the direction of the character. Also Lois gets a new Love interest which seems completely pointless, with Oliver you could understand but Grant, why??? I think my problem with this season is that this season more than any of the others just felt like stretching out the series. Clark should be at the Daily Planet, there should be No more Clark Lana Angst and Lex should be completely evil by now there should be no shred of good in him, and Lois and Clark should be together or at least flirting more than usual.
Highlight episodes Bizzaro, Kara.Siren,Descent,Apocalypse and Artic.