Different planes, ranges, loadouts.
Comparing apples and oranges.
IAF doctrina is to have heavy/medium/light fighters.
Dear Halloweene, please note historically IAF has always had a combination of Strikers/Bombers + Fighters..... Never has there been a Light/Medium/Heavy Mix ! There was and is no doctrine as such that says IAF has to have a Light/Medium/Heavy mix! The Mix is dictated by the role that is envisioned as per its operational requirements and to counter its adversaries (PAF/PLAAF) strengths!
From the Spitfires/Tempest Fighters and Dakota B 24 Liberator mix of the 1940's to the Jaguar and Mig 21's/23's of the 1980's historically IAF has stuck to the above points as a guiding principle for procurement!
Not only is this Light/Medium/Heavy mix an alien concept to IAF (historically speaking) but look up the best Air forces in the world (considering their Fighting record) ...be it USAF or Israel Air Force there is only Light/Heavy mix!! Even our adversaries like China/Pakistan have nothing to suggest that we need a Low/Medium/Heavy mix! Even French airforce doesn't have any Light/Medium/Heavy mix so I wonder why you are suggesting this... best to practice what you preach or preach what you need to sell!
So either IAF has had a brainwave that is contrary to its own historical operational knowledge or the wisdom of the best Fighter forces in the world or its adversaries fighter mix (Pakistan Air Force & PLAAF)
However I do understand IAF wishes to have something in its inventory that PLAAF cannot get its hands on (Flankers in their various avatars are there with IAF and PLAAF) but is 100 million + worth spending on a 4 ++ Fighter like Rafale ?? This is a very expensive deal that shall break the entire budget of all the armed forces with repercussions felt by Indian Army and Navy as well when both IA and Navy has a far more pressing needs such as Howitzers and Submarines to name a few.
My point is that if you pay 100 million plus to buy a 4 ++ Fighter than its a wastage since you have nt added any out of the ordinary capability to your fighting arm. I would NOT have objected if IAF had spent this obscene amount of money to get a 5 gen fighter as that would have given it an edge over its competition. To be very frank as our Defense Minister said we can induct more MKI's to bring up our squadron strength and I am pretty certain that MKI is the best there is. IT can also do a bombing truck role if that is what is required !
IAF are themselves to be blamed for this protracted fiasco called MMRCA ----- if your Air Force says there is no Plan B in place if this purchase fails than its not surprising Dassault is playing hard ball!! I wonder whether IAF realises that they have done the nation a disservice by saying this... as a party in negotiation they should have backed the Govt of India's negotiators to get the best deal from Dassault! But no they chose to strengthen the hand of the seller just like a spoiled brat does standing in a fancy toy store to force his parents to buy the most expensive toy by saying he wants just that one and none other! As a layman I am scarred to think our Air Force has no Plan B.... if they are so bankrupt in ideas how would they manage battle scenarios when everything is extremely fluid and you need to have a Plan from A to Z !!
This spoiled brat attitude has to be checked other wise India shall forever have an Imported Air Force instead of a self reliant force!