Prices start higher at Fotolia with €249/month for 25 images/day (Shutterstock: €199), but align with a 12-months subscription (FT with €2.061 vs. SS with €2049). This comparison is not valid for the US where SS starts at $249/month, like Fotolia, and 12-months subscription are $2.061 (FT) vs. $2.559 (SS). Dreamstime in comparison: $239 and $2.399.
Fotolia vector and video files now count as 3 respectively 10 downloads. -More here.