Welcome MsTee. Generally it is easier to find flights with a Singapore, and the cash component will be lower, however this is offset by higher point cost and longer flight time to many destinations, especially east coast USA.
It really is each to their own.
Thanks, maccaisking. I'll think about this some more over the next day or so. Travel time is something I hadn't considered. Shorter travel time (and direct flight availability) is definitely worth taking into account.