All we have from open-sources are rcs estimates. And worse these estimates are little more than guess works and based on clean aircraft configurations. So when you add in weapons, EFTs and external sensors the rcs eill definitely spike.
Second, Rafale does not have F-35 sensors! Rafale have different older sensors (that are only lately being implemented due to Rafale's own long development period. And most importantly it doesn't have the kind of software that makes F-35 sensors-to-pilots-to weapons integration seamless.
Re Spectra and Barracuda. Again, no real specs will come out in the open. All we have are conjectures. What is not in dispute is F-35 is the newer and more software intensive plane to fly.
And there's no comparable system in Rafale like DAS that can give 360 vision, intuitive, which is very helpful in attack modes, BVR and most especially WVR combats.
The fundamental point is in today's highly integrated AD systems, especially from threats such as China, bringing to the fight Christmas trees like Rafsle is a no-no. It will be roasted like Turkey.
And with regards to Pakistan, I think India needs to be sober, creative and practical rather than emotional when dealing with it. Thus while its true that Pakistan is puny compared to India yet Pakisyan's military cannot be discounted. The MKI's might have evaded AMRAAMs but they were aldo neutralized in the process. And I have no doubt it was F-16s that initiated the attack. So why not remove any possibilitybof Pakistan getting upgrades for its F-16s?