Let me tell you what I know about American and Russian planes in General. Russia is a country where the government makes the plane while US has many private companies to make planes. Many companies create competition. Competition will definately make the quality of the product better. Let's break it down. The material in US is definately better than russian since we have the space program where you test materials in space. Also We are by the ocean, creating materials within 1 atmospheric pressure is surely excellent because it's easy to calculate. American computers, common, many good programers and EE from all over the world gets to work here, more brains, what more can I say. The vector throttle, common , russian vector throttle is fake. They're not even flat like a vector. That's really stupid. They don't even have colant vent from outside to cool down the afterburner and they wanted to claim that it's a stealth plane. WAT EVER!!! The wing swift forward was already tested by American with the plane X-29. The only advantage is that it could fly slower or at a higher ceiling, but that's a great contradition cause wings swift forward will get rip apart at a low speed. More than marc 1.6 then the wing will need a heavy repair. F-22 has internal weapon sistem, oh no S-47 doesn't. How is that stealthy? F-22 can surely out manuver that Su. And that afterburner, F-22 doesn't need one to fly above marc 1 but not su. Su eats up much more gas too. And how do you know that Quality is better than Quantity? If you heard of Fockland war at Agentina, Brithish VS Russian plane. Wow, 20 Agentina planes down, 0 for the british. Proves that Quality is a big different when it comes to technology with aviation. And if you think Su looks better, I don't care. Personally I like F-22 more, but F-22 is definately better.
About the crash, man, F-22 has been testing for more than several thousands of hours. The pilot must be pretty messed up too. Su-47, that's made to show the kids of how Russian plane suppose to look like.
There're more things that I can talk about, but this is just for now.