Spit IX is a 1942 fighter, Ki-84 is crippled by bad fuel and the F4U would have some distinct performance advantages and disadvantages against the Yak-3. Remember, the WWII Yak-3 was powered by the same ~1200hp engine as the Yak-9T. It was the post war Yak-3 powered by the ~1500hp engine our Yak-9U has that put up the nearly 5,000ft/min. The Yak-3's increased performance on the same engines was due to lower weight and better streamlining.
so, the jaks takeoff weight was around 5000 pounds, according to the wiki (someone post a data from a reliable source plz)
Its an AMAZING little number, 1100 pounds less than the 109F and about the same as a light a6m5.
BUT
the Jaks wing area is even less than the 109Fs, 14.85 m3 vs 16.05m3, also the 109F has 1350 horses under the hood vs the Jaks 1200. I except very simmilar flight characteristics from theese numbers when the jak is a little bit more maneuverable but slower than the 109F. Also i "think" (speculation light on) that the jak had a very short flight time.