In general, I prefer MH to KE in many areas, but I noticed that OP listed a flight on an MH A330 from TYO-KUL. If this aircraft has the new business seats, I would avoid it like the plague. They are simply awful. If any of the listed flights are red-eyes, KE would be a better bet for sleeping comfort as I think most (all?) of their 777's now have flat-bed seats whereas only MH A380 has flat beds in business.
IMHO, MH food and lounges are better (and no, KE's ICN lounge certainly does NOT rate as one of the top 10.

). Wines on MH are far superior if for no other reason than KE serves you what at best could be considered a small tasting and you have to chase the FA down to get seconds.