I came across this suggestion of places to find good crepes in Paris. You can add your favourites if you remember addresses/locations:
Point Chaud Express
49 Boulevard St-Germain (5th)
M: Maubert-Mutulite
From the mint tea that owner Christophe Kokkinos serves while clients wait for their crepes to the lollipops he distributes to children passing by, many are besotted with this man. Another bonus: the stand is popular among students from the nearby Sorbonne so it is great for people-watching while you wait.
Oroyana
36 Rue Mouffetard (5th)
M: Place Monge
A tiny crepes take-away shop, Oroyana is easily missed on a street packed with creperies. However, it stands alone in that their crepes eaten in-house are crowned with an extra dollop of Nutella on top of the plated crepes (in addition to the abundance inside). I dare say the resulting ratio of Nutella to crepes is in Nutella’s favor. They also make flambeed crepes with Grand Marnier or Cognac.
The Petit Grec
68 Rue Mouffetard (5th)
M: Place Monge
The Petit Grec is one of the cheapest crepes joints around. Maybe because they let clients tweak the menu and invent concoctions. I mix goat cheese, tuna, salad and onions. For sweet crepes, the Petit Grec makes a thick homemade dark chocolate spread for which I would gladly shell out 2.80 euros any day.
Chez Alberto
79 Blvd Montparnasse (6th)
M: Montparnasse-Bienvenue
Popular for Torah-style scrolled crepes, Chez Alberto attracts large crowds from the Montparnasse Tower and neighboring movie theaters. It offers thick, doughy crepes with a wide variety of fillings. It also sells pizza, ice cream and paninis.