If i m travelling in SL class of any Train, I prefer always Middle Berth.
Reason:
1. Most of the ppl will not prefer to swap this Berth
2. there wont be much dust/dirty in Middle berth. Because , even If any Dust/dirrty the ppl who sits in lower berth would wipe the dust/dirty in their back.. so it ll be cleaned...
3....
more... Controlled Air from FAN and Window also..
Anybody disagree/Agree with me?