Based on currently available information I view snowden on a different tier to assange.
Assange has always been a political activist as well as whatever else he is, whereas Snowden is much less active. The relations wikileaks had with the Trump campaign and GRU do make me somewhat less sympathetic with him.
On a smaller scale wikileaks have on multiple occasions published lists containing innocent bystanders's full contact and card details - this is clearly a statement in and of itself (not Redacting the details of someone who made a $50 donation to the democrats is wrong and meditated)