I like nutridiary better because it also has functions for metric.. me being an aussie and it also has a creat a meal function.. where you build the ingredients from the food menu then finalise it, and it stores it under your custom meals and then it is always there.... just sign up.. it is free and do a little tour and see if you like it
At the moment, I like using a calorie counter because I struggle with portions... it helps me to work out and also *feel* what is the right amount to eat - I usually eat wayyy tooo much.