Efteling is excellent ,but again, I am not sure i would like it in winter. I never holiday in winter unless it is the caribbean or middle east. DLP is a no go for us between October and April, it is too cold.
But we loved efteling, the ravelijn show, villa volta, sprookjesbos, Fata Morgana, droomflucht, panda droom, the haunted castle, the flying dutchman, vogel rock were all world class, as well as the great scenery, are world class. THe only down side is food options are not great.
But overall we spent 4 great days there. Check out my trip report on this board including pictures.