I've been realy bad at predicting the winner but here goes;
Round 4:
<TABLE class="ism_table ism_fix_table "><TBODY><TR class=ism_row_1><TD class=ism_col_1>
Crusaders</TD><TD class=ism_col_2>
</TD><TD class=ism_col_3>39 (5) - 23 (3)</TD><TD class=ism_col_4>
</TD><TD class=ism_col_5>Brumbies</TD><TD class=ism_col_6></TD></TR><TR class=ism_row_0><TD class=ism_col_1>Rebels</TD><TD class=ism_col_2>
</TD><TD class=ism_col_3> 9 (0) - 34 (5)</TD><TD class=ism_col_4>
</TD><TD class=ism_col_5>
Sharks</TD><TD class=ism_col_6></TD></TR><TR class=ism_row_1><TD class=ism_col_1>
Stormers</TD><TD class=ism_col_2>
</TD><TD class=ism_col_3>28 (3) - 24 (3)</TD><TD class=ism_col_4>
</TD><TD class=ism_col_5>Highlanders</TD><TD class=ism_col_6></TD></TR><TR class=ism_row_0><TD class=ism_col_1>
Hurricanes</TD><TD class=ism_col_2>
</TD><TD class=ism_col_3>28 (3) - 23 (2)</TD><TD class=ism_col_4>
</TD><TD class=ism_col_5>Chiefs</TD><TD class=ism_col_6></TD></TR><TR class=ism_row_1><TD class=ism_col_1>Western Force</TD><TD class=ism_col_2>
</TD><TD class=ism_col_3>21 (2) - 29 (3)</TD><TD class=ism_col_4>
</TD><TD class=ism_col_5>
Blues</TD><TD class=ism_col_6></TD></TR><TR class=ism_row_0><TD class=ism_col_1>Cheetahs</TD><TD class=ism_col_2>
</TD><TD class=ism_col_3>30 (3) - 32 (4)</TD><TD class=ism_col_4>
</TD><TD class=ism_col_5>
Lions
</TD></TR></TBODY></TABLE>
I predict a tough round for Aus with 2 of their best teams out on the bye and the Brumbies up against a resurging Crusaders.