Whoa. This has to be one of the few times I see people recommend another asian carrier over SQ on regional routes esp in Y. I personally haven't tried KE or OZ, but apparently my friend always travels on KE on his trips to korea, primarily because it's cheaper than SQ most of the time. He paid $900+ for his return ticket on KE, while I almost paid $1.2k for SQ. Lucky for me I grabbed another friend to go with me to korea on the 2-to-go promotion that just ended. $650+ per pax for end-Dec to mid-Jan trip.
If price wasn't a concern, I would think SQ Y is still better than most other respectable asian airlines (e.g. CX, JL, NH, TG, KE, OZ, MH). I like the food selection (they actually serve food that's nice to eat), the selection of on-demand music and video, and the excellent service from staff. I actually feel pampered even on Y, if you ask for something reasonable, the crew would often surpass your expectations.
I once asked for a night snack when I couldn't sleep on a red eye flight back from the US. The steward offered biscuits, but I wasn't really into biscuits at the time, so I asked if there was something else. He said he'd check. After 5 mins, he came back with some freshly heated Krispy Kreme donuts (typically only available on J class flights from the US) on a white plate and with utensils (the kind J class uses) and set my tray table like they do in J during meals. He also passed me 2 bottles of water, a cup of warm milk and a can of tomato juice. I was really pleasantly surprised. I highly doubt he was aware of my KF status (which was Gold), as I flew in Y. We had a little chat just to pass some time after which he went on his way to attend to another passenger.
There are many other little things the crew have done for me over flights I've flown with SQ. These make the flight a lot more memorable and I daresay SQ remains one of the best choice for flying in Y.