Litecoin is much more secure (less prone to being 51% attacked) due to dominating its mining algorithm (Scrypt).
Litecoin also has SegWit implemented (BCash is against SegWit), permitting Litecoin to have second layer scaling solutions such as Lightning Network built on top of it, following Bitcoin’s path.
Also, purely my opinion, but Litecoin has much more integrity- BCash community is known for trying to scam people into thinking it’s the real Bitcoin.