Better late than never - I thought I should stick this in here.
Sydney Sixers seem the team to beat. Just chased their highest ever target today against Perth and have won their last 8 run chases. In fact they've only failed to chase successfully once ever.
Their batters even seem to chase better than the totals they set. Perry averages 107.33 batting 2nd in WBBL (vs 23.82 batting 1st)