I mean like, dogmatically and scripturally?
I will try to get a post out for you tonight. Hopefully it will satisfy you and end your questions about why you should devote your life completely to Our Lord by living within His Church (that is to say, His Mystical Body). It will be rigorous and thorough, since, I have to warn you, the answer to your question will be really long, since there is just so much wrong with the Lutherans dogmatically and scripturally and in almost every other way.
It's kind of like this conversation :
"Do you have a favourite poem ?"
"Yes, the Iliad."
"Could you please recite it ?"
Not to fear, your answer is already being hatched as I write this.