I appreciate your answer and suggestion above, UASPG.
Actually I was thinking the Ren Vendome given its location and review score but okay I will give it up.
Also yes, Ren Arc de Triomphe also looks like a good choice- but at a glance, it is difficult to find lower rates for BRG for now- EUR 445/night... versus my rate for the Westin is EUR 280/night.
Perhaps I will keep the Westin for now and continue to hunt a lower rate for Ren Arc.