I think a good idea would to have allstar teams for the Northern and the Southern Hemisphere.
e.g. NH
1 - sheridan
2 - servat
3 - adam jones
4 - wyn jones
5 - o'connell
6 - dusatouir
7 - moody
8 - heaslip
9 - youngs
10 - flood
11 - ashton
12 - jamie roberts
13 - o'driscoll
14 - bowe
15 - foden
16 - flannery
17 - nicolas mas
18 - richie gray/courtney lawes
19 - harinordoquay
20 - phillips
21 - hook
22 - shane williams
and SH:
1 - mtarwiwa ?
2 - du plessis
3 - franks
4 - whitelock
5 - matfield
6 - pocock
7 - mccaw
8 - read
9 - du preez
10 - carter
11 - rupeni
12 - fourie
13 - conrad smith
14 - gear
15 - beale
16 - hore
17 - smit
18 - botha
19 - burger
20 - genia
21 - morne steyn
22 - muliania
e.g. NH
1 - sheridan
2 - servat
3 - adam jones
4 - wyn jones
5 - o'connell
6 - dusatouir
7 - moody
8 - heaslip
9 - youngs
10 - flood
11 - ashton
12 - jamie roberts
13 - o'driscoll
14 - bowe
15 - foden
16 - flannery
17 - nicolas mas
18 - richie gray/courtney lawes
19 - harinordoquay
20 - phillips
21 - hook
22 - shane williams
and SH:
1 - mtarwiwa ?
2 - du plessis
3 - franks
4 - whitelock
5 - matfield
6 - pocock
7 - mccaw
8 - read
9 - du preez
10 - carter
11 - rupeni
12 - fourie
13 - conrad smith
14 - gear
15 - beale
16 - hore
17 - smit
18 - botha
19 - burger
20 - genia
21 - morne steyn
22 - muliania