"India's defence ministry has been authorised by the cabinet to buy 12 used French-built Mirage 2000 jet fighters from Qatar."
As for Mirage 2000 vs. <insert aircraft>, I'll just say that the French is far better at "user interface" design than the Russians. For an example compare the cockpit layouts of French aircraft vs. Russian:
French:
Russian:
The benefit for Pakistan to purchase French aircraft is that the French are willing to sell a stockpile of spares and munitions, the Americans are not.
Although the capabilities of the Mirage-2000 and F-16 are quite similiar, the Mirage-2000 is more costly because Dassault only made ~500 Mirage-2000 planes, versus Lockheed Martin has made ~4,000 F-16's. More planes = less R&D expense per copy.
Pakistan's F-16 purchase:
"Current sale proposal by the USA
Recent discussion with the Indian ministry of defence indicates that the F-16 could be bought by the Indian Air Force. According to Indian media Lockheed Martin has expressed interest in the co-production of F-16s in India but there have been no such reports from US government nor has Lockheed Martin confirmed these reports. India is a big market of Russian fighter jets as IAF flies large numbers of Russian MiG & Sukhoi fighters but recently India has been trying to break away. However, Russia has threatened that if India moves away from the Russian market then Russia will open its military aviation market to India's foe Pakistan. Pakistan is interested in buying Russian Sukhoi Su-35 aircraft. India currently uses Russian MiG-21, MiG-27, and MiG-29 aircraft as well as the Sukhoi Su-30MKI, which has created the imbalance in air power in South Asia.
The USA has also lifted curbs on Pakistan acquiring the latest F-16 block 52/52+ C/D version. Pakistan is also looking into other fighters equal or superior to the F-16 — for example, Sweden's JAS-39 Gripen and France's Rafale.
Pakistan recently reported that it is going to buy 75 late-model F-16s (F-16C/D, Block 50/52) along with some secondhand USAF F-16s & discussions with US on the deal is to go under way very soon. US has already rolled out two secondhand F-16s for PAF which would be delivered in December 2005 after some necessary modifications. These two F-16s will serve as gap fillers for the current fleet as they would be sent for MLU upgrades. PAF is to send two F-16s for MLU on turn bases. After two F-16s are MLUed & delivered, an other two would be commissioned for MLU & the process will continue until 35 operational F-16s of PAF are upgraded. The two secondhand F-16s will remain with PAF permanently & may be joined with other 2nd hand F-16s. The fate of four broken F-16s which were also cannibalized for operational fighters will be decided soon whether Lockheed-Martin is to rebuild them or PAF puts them up as replicas at the head offices in major Pakistani cities.
USA has agreed to give MLU to PAF's current F-16s to the Block 50 standard.
It is believed that PAF is going to maintain 150+ F-16s with advanced avionics & weapons systems which may include AIM-120 AMRAAMs, AIM-9X Sidewinders along with AESA Radars.
Pakistan may also modify its new & old F-16s with some European weapon & avionics system."