Converting XML to JSON

Hi guys I am currently experimenting a little bit with JSON and XML and so i came across the following XML structure: (Which i took from the german wikipedia: http://ift.tt/1C8jW67)

<Kreditkarte
  Herausgeber="Xema"
  Nummer="1234-5678-9012-3456"
  Deckung="2e+6"
  Waehrung="EURO">
  <Inhaber
    Name="Mustermann"
    Vorname="Max"
    maennlich="true"
    Alter="42"
    Partner="null">
    <Hobbys>
      <Hobby>Reiten</Hobby>
      <Hobby>Golfen</Hobby>
      <Hobby>Lesen</Hobby>
    </Hobbys>
    <Kinder />
  </Inhaber>
</Kreditkarte>

and the JSON i have found online looks like this:

{
  "Herausgeber": "Xema",
  "Nummer": "1234-5678-9012-3456",
  "Deckung": 2e+6,
  "Waehrung": "EURO",
  "Inhaber": {
    "Name": "Mustermann",
    "Vorname": "Max",
    "maennlich": true,
    "Hobbys": [ "Reiten", "Golfen", "Lesen" ],
    "Alter": 42,
    "Kinder": [],
    "Partner": null
  }
}

BUT I would have done it this way:

{"Kreditkarte":
{
    "herausgeber":"Xema",
    "nummer":1234-5678-9012-3456,
    "deckung":"2e+6",
    "waehrung":"EURO",
    "inhaber":
    {
        "name":"mustermann",
        "vorname":"maxh",
        "alter": 42,
        "partner":null,
    },
    "hobbys":[
        {"name":"reiten"},
        {"name":"golfen"},
        {"name":"lesen"}
    ],
    "kinder":null
}
}

As you might see instead of enclosing three strings into the array "hobbys" i created three objects.

My questions is if the way i did it is wrong or if it is just different? And if it is ok, could you tell me what the advantages or disadvantages of the way i did it are?

Hope you do not mind that it is german!

Thank you in advance!