I suppose that, theoretically, they should both take the same amount of space for the same amount of clothing because you can compress both. But for whatever strange mental reason, I'm leaning towards the vacuum bags because they just seem like they would compress more.
Anyone have have advice regarding one or the other or both?
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(BTW, when I say vacuum, I'm using the scientific definition of vacuum rather than the consumer definition: "an enclosed space from which matter, esp. air, has been partially removed so that the matter or gas remaining in the space exerts less pressure than the atmosphere" so comments along the lines of "I doubt Housekeeping will let you use the vacuum" are unhelpful because I use the roll-up vacuum bags)