Hello
There isn’t much difference between all the three BITS-pilani campuses except the fact that Pilani is little older setup in 1964,next comes Goa setup in 2004 and lastly Hyderabad setup in 2008.
To be precise,Goa infrastructure is some what better than that of Pilani. No matter in which ever campus you join,the lecturers are good and will be having telepresence class with which you are taught by profs of remaining campuses.