Looking forward to my first trip on SQ PY in March.
What I like is being to pre-select a single seat or extra legroom seat ( for a fee but still worth it).
Also, if flying from the US and are flexible SQ will usually be less expensive.
I paid $ 984 US for this round-trip from from JFK to SIN ( and could have gotten Bali, KUL for an extra $ 100).
There is no way you will find $ 984 on any European airline as they can charge that price on just one leg to their respective hubs.