Comparison of number of bytes transferred over network while using HTTPService and RemoteObjects

If I have to transfer data(say records of 100 employees in a DB) from Server to Client, I could use HTTPService and fetch the data as an XML file and then convert it to ArrayCollection in the Client. Or use RemoteObject and transfer the data in binary. Lets ignore other methods(Web Services etc) of data transfer for the moment.
Now, for the same data, if I implement the application using HTTPService and RemoteObject, I notice that the number of bytes transferred over the network is less in case of HTTPService(XML) when compared to RemoteObject(AMF) which is a shock to me. My understanding is that AMF transfer should be more compact than XML. Ofcourse, once the data is available, RemoteObject result processing is noticeably faster than HTTPService result processing. My concern is why data transferred using AMF is larger than XML. As an example, you may refer to the samples provided in TourDeFlex. Refer to the following:
HTTPService:
    Found in : Flex Data Access->HTTPService->BasicExample
    Link: http://www.adobe.com/devnet-archive/flex/tourdeflex/web/#docIndex=0;illustIndex=0;sampleId =12700
    Click on the 'Get Data' button to fetch the data.
    Bytes transferred - 1050
RemoteObject:
    Found in : Flex Data Access->RemoteObject->BasicJavaRemoting
    Link: http://www.adobe.com/devnet-archive/flex/tourdeflex/web/#docIndex=0;illustIndex=0;sampleId =13300
    Click on the 'Get Data' button to fetch the data.
    Bytes transferred - 1440
This is a significant size difference. You may see the data transfer size by using developer tools like the HTTPFox Firefox extension.
Am I missing something here? Any help will be very much appreciated.
Thanks,
Balu

There is definitely problem with your tool or you looked at something else. Please check the attached snapshots of the session using charles capture tool. The response sizes are way bigger than what you mentioned but remoteobjects is almost half of httpservice for the complete transfer including request and response. Check below -
httpservice -
http://tinypic.com/view.php?pic=2q2le2e&s=7
amf -
http://tinypic.com/r/10wmx4o/7

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Comparison of number of bytes transferred over network while using HTTPService and RemoteObjects

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