There are a lot of data modeling tools out there. I do not think there is one place where you can find all tools compared. The list mentioned above (btw, here is the up-to-date one: http://www.databaseanswers.org/modelling_tools.htm) just enumerates all known (to the webmaster) modeling tools.
Well, anyway, as far as the tool compare matrix… ignore the Modelright part… just look at the ERwin vs. ER/Studio part, as the two leading market tools. As someone familiar with both products, I think it is a fair compare of the physical capabilities of the two tools.