Kinder Eggs are not that great. They are good, by all means- better than anything Hershey's makes and a step up from most English chocolate (which isn't saying much), but I think Ritter Sport is a tastier German chocolate. I used to go ice climbing with this German lady who always brought Ritter Sport bars on our trips and they were good- especially the one with whole hazelnuts.
If the whole idea is an egg to keep with the Easter theme then a chocolate bar doesn't fit the bill, but it's something you don't see every day in the candy aisle.