I don't try to be different, I don't even try to compare to others at this point. When I made fruji.com, everybody said: Dude, there's Klout, you are nuts, it doesn't make sense. People often forget how big the pond actually is, there's so many fish in the sea here, there's enough room for all kinds of niche ideas. A lot of my paying users on fruji.com are also paying users for thousand-dollar enterprise social monitoring tools. I usually only get curious about competitors once people start asking for certain features that keep them from sticking with my product and forces them to go back all the time.

EDIT: Just one thing that differentiates this little thing from the ones you mentioned: I don't require your e-mail address to proceed. Couldn't test the sites you mentioned for that reason, wouldn't let me go past that.