I am designing a RESTful API for a booking application. You can request a list of accommodations. And that's where I don't really know how to design the JSON represenation. This is my XML representation:

<?xml version="1.0" encoding="utf-8"?>
<accommodations>
    <accommodation>
        <name>...</name>
        <category>couch</category>
    </accommodation>
    <accommodation>
        <name>...</name>
        <category>room</category>
    </accommodation>
<accommodations>

My first try to convert this to JSON resulted in this output (1):

{
    "0": {
        "name": "...",
        "category": "couch"
    },
    "1": {
        "name": "...",
        "category": "room"
    }
}

But as I looked how others APIs did it, I found something looking more like this (2):

[
    {
        "name": "...",
        "category": "couch" 
    },
    {
        "name": "...",
        "category": "room" 
    }
]

I know version 1 is an object, and version 2 an array.

But which one is better in this case?