Here is the last one
I have used Irda , bluetooth as well as datacable..
datacable and bluetooth have faster tranfer rate.. IRDA sucks.. but is good choice as it will do with any handset ..
Same with dongle..
Also configuring irda is piece of cake..
but sometimes cable might not want to go you smooth but once configured then it is rather a pastry
So if you want speed in transfer then go for cable..
and want value for money then go fro irda