Indian first (the old one was simple but very striking, while the new one looks classy, though there is a bit too much of saffron).
SpiceJet second
Jet third
Kingfisher next
Air Deccan (where is the livery? More ads on the plane) next
Go Air next
Paramount last (very amateurish)
Pity Air India and Air India Express are not on the list. If they were, AI is a clear winner, followed by Air India Express (but only what is there on the first three AIX planes). The fifth and sixth ones have a close-up of a woman sitting and showing off her painted nails and bangles and another is of a close-up of a woman's neck with ethnic jewellery. Looks damn tacky.
1. Spicejet (very spicy) 2. AIX (Stuuning) 3. Indian 4. Air India 5. Kingfisher Airlines 6. IndiGo 7. Jet Airways 8. Paramount Airways 9. Go Air 10. Air Sahara (Picked from a trash box of boeing) 11. Jagson Airlines 12. Alliance Air