Leeds are miles better than the rest of League 1. They have easily the best defence in the league and probably the best midfield too. They create loads of chances for him in every match, but his shots-to-goals ratio is terrible (something like 1 from every 5 or 6) and that's against League 1 defences and goalies. Also if memory serves has a really bad record in big matches (I was shocked he was the scorer against Man Utd). I don't think any Leeds fan rates his future as anything higher than Championship, and to be honest, I don't even rate him that highly. He's nowhere near good enough for Everton. If he does go to Newcastle and score loads there, it'll be because they put chances on a plate for him, but he'll fail in the Premier League.
Remember Jason Scotland was banging in the goals for Swansea in the Championship. Besides, Beckford isn't even the best striker in League 1 - Ricky Lamert is, in my opinion, and I'd take Simeon Jackson over Beckford any day.