Haha, yeah the Su27 will always kick the F16's ass in manoeuvering, vectorial thrust is the answer ! The cobra is of no use in actual combat though.
(a looong time ago I was an online squadron leader on
www.checksix-fr.com under Flanker 2. With Lock On you can compare east block and west block fighters... Very interresting, one side lots of avionics, on the other old school simplicity, but it works. Oh and try landing a su27 on a carrier at night, the HUD horizon is.... argh, it's the opposite of what we are all used to use)
Ok, just look at this, experimental NASA plane to study vectorial thrust, look at the mangoose manoeuver

Looks like stalling isn't a problem anymore, this one can do anything even stalled
http://www.dfrc.nasa.gov/Gallery/Movie/X-31/index.html