Look, i'm sure India is getting a kick out of all the attention is getting from Europe, US & Russia.
I also believe that even if India has made up its mind on the Rafales - its using the offers from other Contractors in forcing the hand of Dassualt to bring the price down on their Rafales. Nothing is set in stone, including the Rafales.
You're obviously entitled to your opinion, but lets be honest. The F-15 is a Beast. I can't think of ANY Airforce around the World that would want to go up against it.
In over Four Decades, they've never lost a single plane in combat*.
Su-30 or Su-35. It don't matter. Against the Eagle, it'll be roadkill.
*That record could very well be in jeopardy if India does go for The Eagle. There's always a first time.