Many ST carriers allow you to earn/burn on MH. They fly from EWR and AMS, including a KL codeshare from AMS. If the price is the same, you absolutely want the MH flights - especially if you're in coach, as they have 34" pitch, seatback TVs, and far, far better service than KL.
I'm not sure about DL members earning on MH, but I'll be the KL codeshare qualifies.