TOP TEN HOSTELS IN THE WORLD

According to this article in the Daily Mail these are the best hostels in the world.

1. Travellers House, Lisbon, Portugal
2. Rossio Hostel, Lisbon, Portugal
 3. Living Lounge Hostel, Lisbon, Portugal
4. Academy Hostel, Florence, Italy
 5. Carpe Noctem, Budapest, Hungary
6. The Riverhouse Backpackers, Cardiff, Wales
 7. Lisbon Lounge Hostel, Lisbon, Portugal
8. Greg & Tom Hostel, Krakow, Poland
9. The Naughty Squirrel Backpackers Hostel, Riga, Latvia
10. Lisboa Central Hostel, Lisbon, Portugal

I have my own recommendation:

1. La Bolsa - In Bariloche, Argentina...I'll keep on filling it, but right now I can't think of another one worth mentioning.