The way this will work is you'll rank the houseguests of each season that you've seen, based on each individual season. So Season 1 rankings, Season 2 rankings and Season 3 rankings. However, you don't have to watch or rank every season to take part in this; just the ones you've seen.
After ranking them you will give each one a rating between 1-25 (25 being best, 1 being worst), for every individual season. No two houseguests on the same season can get the same rating, and only whole number ratings are allowed. Obviously you won't be using every number and you don't have to give your favorite of a season a 25 rating or your least favorite of a season a 1 rating, etc.
The Casts
Season 1 Cast
1 AJ
2 Alec
3 Andrew
4 Aneal
5 Danielle
6 Emmett
7 Gary
8 Jillian
9 Kat
10 Liza
11 Peter
12 Suzette
13 Talla
14 Tom
15 Topaz
Season 2 Cast
1 Adel
2 Allison
3 Andrew
4 Anick
5 Arlie
6 Heather
7 Ika
8 Jon
9 Kenny
10 Kyle
11 Neda
12 Paul
13 Rachelle
14 Sabrina
15 Sarah
Season 3 Cast
1 Ashleigh
2 Bobby
3 Brittnee
4 Bruno
5 Godfrey
6 Graig
7 Johnny
8 Jordan
9 Kevin
10 Naeha
11 Pilar
12 Risha
13 Sarah
14 Sindy
15 Willow
16 Zach