I share the same opinion with Timmappa in this regard. Train has always been the most favourite mode of transport for me. The journey in the train itself becomes the most thrilling part of the travel, as it keeps moving through the different land forms and scenario of the country. Apart from that, the rhythmic jerks and the speed make me feel the way, which we can't experience in any other mode of journey.
But nowadays, things are often getting difficult when we see, people are not respecting the reservations and are trying to occupy your places whenever they get a chance.
That continual struggle for occupancy has become an irritating factor. Besides the bad habits of the co passengers who don't bother spitting and littering around every now and then curbs down the excitement and thrill a lot.
Air as a transport though comparatively comfortable, doesn't really make you feel nice at the end when they cut a big hole in the pocket and you have to sit uncomfortably all through the journey and have nothing to enjoy unless you get a window seat.
Bus journeys are okay for moderate distances but is no way near to comfort in comparison to the train. Sleeping and sitting both are uncomfortable and it isn't worth the money we have to spend nowadays.