I would also recommend taking the train from malaga.There is a train that runs by the airport and takes you into malaga city. This same train also takes you to the tourist resort areas of torremolinos and fuengirola( which is the opposite direction of malaga)From what I can remember when I was there last year it is about two euros for this train). When you reach malaga city the station to go to sevilla is very close. From what I remember it costs 14 euros to go from malaga to sevilla. The train ride is somewhat scenic when you go through the mountains on the way to sevilla.It is also spacious an comfortable.