Vishishtadvaita, as we know, is a Vedantic philosophy propogated by the renowned Sripad Ramanujacharya. The philosophy is subscribed mainly by Sri Vaishnavas, Ramanandi Vaishnavas and Swaminarayan Vaishnavas.
On the other hand, Shivadvaita is another Vedantic philosophy, propagated by the Shaivite philosopher, Srikantha Shivacharya and followed by the Shaiva Siddhanta sect.
Now, often Srikantha Shivacharya is accused of copying Sripad Ramanujacharya's Vishishtadvaita philosophy and modifying it slightly to suit Shaiva philosophy as the two philosophies are almost identical in nature. So I want to know are there any philosophical differences between Ramanuja's Vishishtadvaita and Srikantha's Shivadvaita?
One glaring difference between the two philosophies I see, is Ramanuja posits Brahman as exclusively Vishnu while Srikantha sees Brahman as exclusively Shiva. So are there any other differences between the two philosophies?