So why didn’t Russia supply S-300 to Iran earlier if they are such great friends?

They didnot supply new IL-76 to China either despite signing the agreement at the time. so?. you have no understanding about industrial production capacities for old and new models. they were renegotiating in 2013 about S300.
http://www.csmonitor.com/World/2013/0911/Is-Russia-toying-with-US-Missile-sale-to-Iran-raises-question

China is far less reliable when there are core Israeli/Arab/EU interests involved.

the problem is China can barely have 1 aircraft carrier with no operational strike fleet on it.
Transport/Tanker/bomber fleet is not optimum. Alot of Chinese relationship with West and Arab world. i am not just pointing to trade. China ability to bomb Middleast is minimum

It will take years if not decades for Iran to get its airforce in shape. it is not worth the money to spend on it for short term.
The more business and money Iran give to Russia. The more decisively Russia will deal with Turks/Arab and at the end with Israel. to the point that these people will have to sell all there assets in West and raise even Oil/Gas prices to fund wars. Think over it. how much Turkey is spending by putting all its troops in Syria border.

This HDI report is joke. http://hdr.undp.org/sites/default/files/2015_human_development_report.pdf
basically raw materials countries like Norway/Australia or some financial like Hong Kong in it. or US that has majority science graduates from overseas.
HDI should mean indigenous development of society not import.
It is not hard to surpass China/Turkey/Brazil when you look at dysfunctional system.

Brahmos II is a join program between Russia and India
and it not exactly a compact missiles even though it is smaller than Scud

how do you know Brahmos-2 size. cruise missiles are far more compact, mobile than billistic missiles.

all ballistic missiles dive very steep and there is no way Brahmos will make a S curve maneuver at mach 7 ( and it wont go mach 7 at sea level either ) , what most likely to happen is that after launch Brahmos will climb up and follow a ballistic arcs

dont put your own theories. Brahmos is largest quantity high speed missile in continous production in tri service. tremendous confidence in its abilities. that is in country that can barely put a single test of Israeli joint project Barak airdefence missile after 10 years.

more advanced in what aspect ?

In every aspect. even the export of domestic version is more advanced than the export of customized version.

http://tass.ru/en/defense/857531
Unlike the Su-30MKI fighter jet, the avionics suite mounted on the Su-30SME aircraft’s version lacks French-made components, the source said.
Russian-made components for the Su-30SME fighter jet’s avionics suite have allowed enhancing the aircraft’s capabilities.

I think most people have put you on ignore list , may be it time to be more mature in your post

My post is most realistic of the capabilities. there are even more ground based EW systems also in the theatre. and balance is of manpower is now decisively in SAA favor. thats why they can afford multiple offensives.

impossible demand.

http://www.hurriyetdailynews.com/will-obama-or-erdogan-blink-first.aspx?PageID=238&NID=95499&NewsCatID=409
Will Obama or Erdoğan blink first?
According to Turkish sources, Erdoğan told Obama that Turkey would stop artillery fire on the YPG, the ground support for the U.S.-led coalition’s air strikes against ISIL and al-Nusra, if the Syrian army, the Russian Air Force and the YPG stopped hitting Syrian opposition forces as agreed in Munich on Feb. 11-12

this is not serious approach to fight. they say 8 of them arrived. either send require quanity with all protection suites or not send at all.

And of course all our F-35 will be in one base. This is also a concern to me. If there is a surprise attack knocking out the F-35 on the ground, the deterrence effect of the F-35 will suddenly be zero.

The counter-argument is that our intelligence will be so good that nobody will be able to launch a surprise attack. (no, I am not kidding).

The deterreance value is already practically zero if it has to face mobile Brahmos-2/Zircon class missiles in saturated attack. larger industrial capacity mean practically round the clock attack.

Su-35S will enjoy altitude ( missiles range ) and radar power over F-16 but it is unlikely that it will be able to attack without warning ,after all it is a big aircraft with big RCS

Su-35 can use datalink from hundreds of kms. The fighter using for radar may not be even in the same area as radar has exceptional range that even AIM-120 can be reliably detected.

http://www.upi.com/Business_News/Security-Industry/2015/11/25/Updated-communications-systems-for-Chinas-Su-35-fighters/1241448479886/
UIMC officials add the updated communication system features a greater radio bandwidth, larger number of data links, greater accuracy in receiving messages, and reduced delivery time.