Skelton has shown that he knows how to get results even with a lack of ability. The guy would put up a good performance against anyone. Williams has been a joke whenever he has stepped up in class, even if that opponent has only been moderate European level.
Depends how you define a good performance. He does get results though and must be an absolute nightmare to fight.
I am not saying Skelton is a great fighter or one that can ever really hope to be more than domestic level but he does know how to win fights. Skeltons style would not work abroad and I can see him losing often by DQ over there.
IMO, Danny's best asset is his power, he has also good skills but nothing that stands out. He has legit HW power, he is explosive and can KO anybody out there, but to deliver it he needs to be as fast as he can, have a decent workrate and move to create diferent angles and openings. For that, he needs to be well conditioned and carry no extra wheight, which will hurt his stamina and slow him down, exactly what he is doing right now. He is not tall for a HW but is large and big boned, I believe his ideal wheight should be somewhere in the low 240s. At that wheight he would always be a KO threat, but could also win fights with his boxing skills. If Danny gets in a decent shape I'll start believing in him, otherwise he is only good for the British and Euro level. Of course, with Danny, although he is durable, there is always the chance of him being KOed, like happened in the Sam fight.