@LittlePorkChop
Actually, you should have a look at Asiana.
You'll qualify for *Gold easy (40k in 2 years). Also, if you keep up this pace of travel, Lifetime *G is also possible (500k lifetime miles).
Main disadvantage of Asiana is the earn/burn ration, but if you are predominantly on Economy, it doesn't really matter much.
However, do note that for SIN-KLA flights, if it is a Silkair plane (even if you bought a SQ ticket), you won't be able to get mileage for it on any program except for SQ KF.