I would say e.g. "treat him the same way you would your brother" -- I would leave out the "as". This construction ("the same way you would") gets about 4x more Googles than with the "as" included

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Note added at 24 mins (2005-11-02 13:51:03 GMT)
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In response to Kenneth's comment, here are just a few of many examples that omit the verb, although there is certainly nothing wrong with repeating the verb, or, in fact, with including "as" -- I was simply stating my personal preference:

"If any tick parts remain in the skin, you can leave them alone or carefully remove them the same way you would a splinter."
http://familydoctor.org/257.xml

"Do you find yourself reading scientific books in the same way you would a novel?"
http://www.salon.com/books/int/1998/03/cov_si_31int.html

"The trick is that you set up the system the same way you would a standard SLI rig, but you don't enable the Multi-GPU mode in the main NVidia control panel."
http://www.pcworld.com/howto/article/0,aid,121805,00.asp

Upon meeting your interviewer, shake his/her hand with a solid grip and in a firm and businesslike manner. Shake a woman's hand in the same way you would a man’s.
http://www.goinglobal.com/hot_topics/canada_graham_interview...