I like to include at least one housemate from every series in my top ten, so...

BB1 Caroline
BB2 Narinder
BB3 Jade
BB4 Tania
BB5 Nadia
BB6 Kemal
BB7 Lea
BB8 Nicky

Which results in the following...

1. Nadia BB5.
2. Nicky BB8.
3. Jade BB3.
4. Lea BB7.
5. Caroline BB1.
6. Kemal BB6.
7. Narinder BB2.
8. Kara-Louise BB8.
9. Tania BB4.
10. Kinga BB6.