Suzy, John has given you perfect advice you cant go wrong with any of his choices. I have owned the 14 XW and LVW 13 both super eyepieces. I have also looked through the Denk.14 and its superb.
But one of my all time favourite eyepieces is the 13 LVW why? not fully sure, I just liked how comfortable it was to look into, very sharp view and a nice field, that about sums it up.
Basically you cant go wrong with any of them. Really its your budget that will sway you.
happy eyepiece buying.