is Su-30 better than F15,F16 or F18

can any military expert give some detail explaination...

I think it is to some extent , but now there is the F-22 and F-35 so not for long

NOt many people see why the cobra maneuver is very practical, but when you think about it, it's very useful: pitching up suddenly in a banked turn and having the persuing aircraft fly right past.

Well the problem with the cobra is you bleed energy rapidly and in a dogfight that usually means death.
A bad guy on your six will probably have shot you already if you've had the time to realize you had someone on your six and should do the cobra manouver. It's faster to fire off a sidewinder or let off a burst of cannon fire than to pull off that kind of move.
Not to mention, if you do pull it off, you'll in the sight of the enemy while you do it, while you will lose sight of your enemy until your nose pitches down. Very dangerous.

There is a very easy way to defeat the Cobra; don't get close enough to your opponent for him to use it in the first place! As for the better aircraft, I would go with the latter three. They aren't "hyperaerobatic" fighters, but they are very technically advanced and flown by some of the best pilots on earth. A plane is only as good as it's pilot.

I would also trust the F-15, F-16 and F-18.

There's a lot of attributes of aircraft that aren't immidiately apparent just by reading raw data about it's G pulling ability.

Well it is better than the F-15, Maybe well yess the F-16, And maybe the F-18, Ive read that Indian SU-30's (sold to them by russia) Beat our F-15's in a wargame pretty bad...

The cobra enables the pilot to shoot backwards somewhat. So it *can* be useful, but if you're using it, you're pretty much screwed anyways.

Shoot backwards?
I remember they had an experiment on firing missiles backwards but it was never really reliable.

Seems like kind of a moot point in the age of Beyond Visual Range missile systems. The F15 equipped with that would be able to engage an Su-30 before the pilot even knew what was going on. But I believe the BVRAAM was designed for more current aircraft like the F22, EF2000, F35, etc. I'd still go with the US equipment over Russian.