what is the range of wifi 11g as compared to 11b?

I have the idea of installing either a 11b or 11g wifi lan.  Someone told me 11g is better, but I think he meant in how much data can be transmitted per second.  I have the idea that this high data rate would translate into less range and penetrating power.  I can go 11g if the range is the same as 11b, but if 11b goes significantly further, I want to chose 11b.  The data rate is really not all that critical, but going through walls and such is.  Please advise.
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Range is almost Identical.  b might be a tiny bit better, but certainly not "significantly" further.

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Linksys WRT54G have a much shorter range than a WAP11 e.g.
I am using WAP11 to perform all my long range transmissions.
Comparing standards is fine, comparing the hardware is better.
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