Here's my list. I've had others and have pared down. I seem that I like the more traditional decks, but the Melissa (and Postmark) are too good to miss!
Comparative Lenormand (I got this on the RS trade train from Aulruna. It has cards from the Blue Owl with card inserts, Mystical, Gypsy Lenormand, and the Carta Mundi with German verses on each card.)
Lenormand Blue Owl with English verses
Melissa Lenormand, second edition (Ordered!)
Piatnik Mlle Lenormand Cartomancy Deck
Mystical Lenormand
Postmark Lenormand (Also got this at RS, from Melissa herself, at her class. It was great!)
(ETA because I want a finger wagged at me!!!)
My Lenormand Wannabes
(On my collection list, I call them "Fortune Telling Not Lenormand")
Art Deco Fortune Telling Cards
Fatima Oracle Cards
Petit Etteilla
Russian Gypsy Fortune Telling Cards
Tea Leaf Fortune Cards