Is this a good pokemon team in soulsilver vs. Johto Elite Four?BEST OPINION?

ok first off you need to level everyone up more. and the types you need to beat the first guy is electric, fire or dark. then for the second you will need fire and physic or ground. then third you will need a flying or physic. machamp is the hardest. then for the 4th you will need a fighting, or water, electic,fire,and one dark. then for the last champion you will need electric,ice,and water. EDIT: their pokemon are level 40-50 no higher or less.