LONDON :A little over two weeks remain of the regular English Championship season but remarkably every one of the 24 clubs in the second tier could mathematically go up or down. While the Premier League is widely-regarded as the best in the world, for pure excitement the Championship is unrivalled. A marathon season comes to the boil this weekend with each club playing twice in the space of four days with key battles at the top and bottom of the table. With four rounds of games left, leaders