The battle for British Airways' £60m worldwide advertising account will be resolved this week. The pitch marks the first head-on clash between Maurice Saatchi's new agency and his old one; J Walter Thompson and Bartle Bogart Hegarty are also in the running. Saatchi & Saatchi called in the decorators to create "a feeling of light and space", using a Van der Graff generator to heighten the effect. Meanwhile, JWT redecorated its offices and dressed its pitch teams in BA garb. A third stunt included filling the building with red, white and blue flowers. The winner can look forward to fees worth about £4m - just as well since the pitch is already estimated to have cost the four more than £1m.