Dundee United moved to the top of the Ladbrokes Championship in style with a 3-0 victory over struggling Falkirk.The Tangerines had the game wrapped up by half-time thanks to goals from Scott McDonald, Jamie Robson and Willo Flood.United had already hit the bar through Billy King when McDonald hooked a deflected cross over his head and into the net to give the hosts a 21st-minute lead.The home side continued to dominate and ended Falkirk's challenge in the final five minutes of the half as Robson found the bottom corner and Flood finished a quick counter-attack.Scott Fraser and Fraser Fyvie were both denied by the woodwork late on but the three points had long since been in the bag.