do you take issue with the spelling out of the word instead of using the logo, or do you simply want a more OS neutral legend? in any case, the best way to end the frustration is to cease using the key. i remapped my winkey to caps lock and haven't looked back since. and winkeyless layouts look much better anyway
Haha... well the Windows logo is equally bad, probably worse as it lacks the irony of having a key on your keyboard labeled "win". (This gives me an idea for a delightfully ironic "e-sport": the player who hits the "win" key fastest after the match starts, wins.)
On a non-blank keyset, I'm perfectly okay with "Meta", "Command" or "Super".
I consider Linux penguin keys to be in bad taste, because they ape Windows keyboards. (Same goes for the recessed circular emblem shape on those keys.)
The aesthetical point of this whole thing is the history you reach back to. With "Command", you reach back to the Macintosh, and the original vision of Steve Jobs about combining computers and proper typography. With "Meta", you reach back to the world of UNIX, and with "Super", you reach back to the venerable Symbolics keyboards.
An OS logo, or "Win" reaches back to Windows-bloody-ninety-five. Not the most glorious of pasts to remember, I have to say.