Franz Rosenzweig

Franz Rosenzweig seemed to me to be over influenced by Hegel. Yet on the other hand I understand the need for Reform Judaism to have some book to base their movement on besides the Guide for the Perplexed and after all the Star of Redemption is a deep book. But that still does not make it a great book or a book you you base a meme on. This is why reform Judaism flounders. But in their need for a modern Jewish thinker they are not alone.
The problem really is that after the Rambam there has not been a Jewish philosopher of his stature.