I avoid the Champs Elysee like the plague when in Paris, so I can't imagine the torture of staying at a hotel near it.

I stayed at the Opera Ambassador on my last trip on points for three nights and was quite pleased. I had an upgraded room ('Executive King' I think) - and I really liked it. My room had a huge shower, but no bath but was no problem for me (and in fact, probably preferred). The lounge offers breakfast and evening cocktails and some nice views, but it's far from a great lounge.