Geeky or Sexy Costume?

Halloween is only two weekends away but you still have time to shop for plus size costumes at Buy Costumes. They currently have a discount promotion running: spend $25 get $5 off, Spend $50 get $10 etc.
When I was looking through the selection I noticed there were many styles already sold out but I did find two fun favorites that had combo plus sizes. The Immortal Seductress ($40) and Where’s Wenda for $37 (come on! she’s cute!). I’m calling them the sexy and geeky costume options:

One of these costumes is more practical than the other one. Can you guess which and why? In my opinion the Waldo costume is more practical for a plus size frame. A woman can wear her own skirt and can be pretty much confident she will be comfortable for the evening. The vampire costume while sexy and cute in its own way it may be awkward for sitting and going up stairs because of the way it comes in tightly at the knees — that train is awesome though.
One looks cool, one looks geeky. Which one is your favorite for look and which is your favorite for practicality?
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