Hear Hear KnackeredII!
You beat me to it. Whole heartedly agree that SIA don't get any favours from Changi ATC and anyone that thinks they do should make the time for an ATC visit and see the system in operation.
It is quite impartial and training aircraft have no priority at all, they are radar vectored out of the way of arrivals and departures .
Singapore's own airspace is very, very small and controlled by the tower! The levels allocated are as per an agreement between Singapore, Malaysia, Vietnam and Indonesia and these countries TELL Singapore what levels they will accept their traffic at. Changi operate a totally non-partisan slot system to achieve separation based on the published schedule and the time the aircraft calls for it's clearance.
Very rarely does a landing aircraft get the TO runway but we all like to minimise taxying if possible and there is no harm in asking. If you think you are hard done by at Changi just try getting RW25L at LAX next time you are an inbound freighter for the ICC! You wont, simple as that, it 'belongs' to United and AA, you will get 24R and then spend thirty minutes plus taxying across the active runways, going from the NE corner of the field to the SW corner.
There may well be a lot wrong with SIA and Singapore in general but when it comes to ATC they run a very fair and tight ship.