Originally Posted by
hermanc
SQ5477 is Silkair codeshare so you won't get *A miles unless you are w/ SQ's FFP (KrisFlyer). No miles will go to TK.
Nor lounge access at Changi for the onward Silkair leg. Personally, I find IFE, food and in-flight experience is generally slightly better on SQ in Y, although I have noticed there have been cutbacks in food vs. a year ago.
But timing on a long haul is always a consideration so it's really up to how one chooses the trade-offs.