A-10s don't do well in near peer competitions. They are only good for harassing people in the third world who don't have any kind of anti-air capabilities.
I'd say the first two, but not heat signature. However, it's also lacking in sensors. As in, it has to operate low and slow in the daylight, because the pilot can't see well enough to operate any other time. The officially supported way to get low light/IR vision on it is to startup a Maverick missile on the wing and use the sensor on that to see.