Hi could anyone tell me which smell better hob or Jill ? , we have 2 hobs, and they stink, they live out in cage, and my son gives them play time twice a day , in which bu the time he comes back in he himself stinks

. He has been told by lots of his Friends that Jill's do not smell like his hobs do ?. also they are fighting alot and the one had his ear bitten which bled the other day , we have only had these 2 hobs 2 weeks now , and they are 8 months old. should i have them neutered will this help ? with the fighting (are they playing do you think ) .
hope someone comes along to give me advise thanks in advance .