I do not have much experience with flying. I have flown only 6 times - 3 with King Fisher, and 1 each with Deccan, Go air and Indian. All my flights have been in the Cochin-Mumbai sectors. I would simply rate King Fisher the best among the lot. It is very tough to like any other airline once you have travelled with King Fisher. Other services pale before the King.
The pleasant services start from the moment you land at the airport - There would King Fisher personnel standing outside the terminal to guide you thru every thing. You can see efficiency in every aspect from the check-in counters till the time you board the aircarft. The air-hostesses, as every one know, are cute and smart looking.
Food is great. I like the plane-map tracker very much. It is actually good value for money, though you might be spending 125 - 150% of what you spend on Deccan and Go air tickets. Whatever Mr. Vijay Mallya has started, he has started with a bang!