All 3 makes have had good reviews and have good reputations. Suggest you do a google search for reviews and personally I'm not that keen on the Sony and would really consider the other two. If I was looking for one just for music files then I think I would be looking at 3 things. Size, can the battery be changed without it costing an arm and a leg and how long is the battery life. If you're waiting till January you might be better looking about then as there will probably be other models out then.