JSF (v Su35 or Typhoon or Rafale, to a lesser degree):
Less Range
Less Endurance
Less Payload
Lower Mach
Lower Turn Performance ('spec at high level in BVR conditions)
Less persistence
Similar stealth with full payload (which is still Less)
Reliant on off-board sensors (much higher cost variant may improve)
Single engine (I hear you! - but given a choice? 'Specially in Oz)
I acknowledge that these are 'noddy' factors - but put together with several other important 'scenario' factors', don't they tend to support my assertions? My misinformation comes from 12 years being paid to assess the pros 'n cons of what's value for money in the business - doesn't mean my views cut the mustard I know, but also doesn't imply that I'm anti US kit. Far from it - I'd be happiest with a Raptor any day; but then I can't afford a Ferrari either.
Still, I've a mind that is open to informed persuasion that the ADF/RAAF won't eventually catch a cold by putting all its offensive eggs into one basket, and that with JSF it will dominate the region (that indigenous word 'dreamtime' comes to mind). Meanwhile, I maintain that an apparently good financial deal (apparently/quizically!) today doesn't necessarily give tomorrow's boys the right toys.
Incoming -------------------