There are hundreds (or maybe thousands) of different variations of Protestantism.
It will be easier and more likely for Catholics to identify the one true faith.
So which is the ONE TRUE version?
Besides, you are wrong.
THE RITES OF THE CATHOLIC CHURCH -- There are many!
http://www.freerepublic.com/focus/religion/2460378/posts
There are hundreds (or maybe thousands) of different variations of Protestantism.
Maybe. Or maybe not. Different names above the door do not necessarily mean different interpretations of Scripture.
And in many of the non-Catholic churches, there are far less significant differences than exists between say, the Roman church and the EO, just for one example.