Depends on your flight patterns. If you're commuting domestically and/or to the US you're going to make it on segments most likely. If you've got a handful of J flights from Canada to Asia then you're making it on miles by a long shot, same thing to Europe but you need more flights (obviously).
Personally, I think every year but one I've had my status earned on miles. This year I re-qualified for 2020 SE on miles a couple of months ago, and I'm going to qualify on segments as well by the end of the year (I am already on 83) ... yay me
