Heres what pokemon the elite 4s have in diamond and pearl. Most of you have probably beaten them and finished the game, but just in case you want to know, here are the pokemon:
Aron- Bug type
1/Dustox/lv53/boy
2/Vespiquen/lv54/girl
3/Heracross/lv54/boy
4/Drapion/lv57/boy
5/Beautifly/lv53/boy
Bertha- Ground type
1/Quagsire/lv55/girl
2/Hippowdon/lv59/girl
3/Wishcash/lv55/girl
4/Sudowoodo/lv56/girl
Flint- Fire type
1/Rapidash/lv58/boy
2/Infernape/61/boy
3/Lopunny/lv57/boy
4/Steelix/lv57/boy
5/Drifblim/lv58/boy
Lucian- Psysic type
1/Mr Mime/lv59/boy
2/Alakazam/lv60/boy
3/Bronzong/lv63/x
4/Medicham/lv60/boy
5/Girafarig/lv59/boy
Champion Cynthia
1/Spirit Bomb/lv61/girl/pysic
2/Garchomp/lv66/girl/dragon-ground
3/Gastroon/lv60/girl/ground-water
4/Lucario/lv60/boy/fighting
5/Milotic/lv63/girl/
6/Roseade/lv60/girl/grass