At this very moment, it's 12 fighters having a positive K/D over the Yak-3. But the volume of data is still so small for most of them, that there is not much significance to it yet. Numbers will still change rather rapidly, and it's not only yak-3 pilots getting used to the new ride but also their enemies getting used to fighting them.
Will be very interesting to see how it plays out over the course of the next 1-2 tours.
Most of the planes with positive kill ratios over the Yak are perk rides or the common rides of picker specialists. Very few Dora drivers will engage a Yak-3. Typically, they'll wait until the Yak is preoccupied and dive in for the pick. The majority of the P-47Ms I've seen do the same. There are exceptions, like LilMac (who will not run from any fight), but they are few and far between. Tempests, 262s, Doras, CHogs, Ta 152s, F4U-4 and so on. These guys won't risk their perks, and obviously realize that a maneuver fight with the Yak-3 is high risk. I have yet to find a P-51 that will engage. They all run. I find it interesting that the Spit16 is taking real beating from the Yak-3. Yak-3s have killed 127 Spit16s for 86 losses. I would have thought that this would be closer to 1/1, not 1.5/1 as it is. The Ki-84 is doing better than the Spit16, with 44 Yak-3 kills to 50 losses to the Yak.
Last evening, there was a big furball near a Knit CV, just off of a Rook field. I headed over, climbing to 15,000 feet. When I arrived, there were two Ta 152s and a Dora hovering about 10k near the CV. They would dive in and pick the guys in the furball, or scorch in and bounce bombers heading to the CV. When I showed up above them, they scattered like rats. I chased one of the 152s, closing from 2k to 1.2k, but couldn't get closer. Even after I turned away, he continued to run to his country-mates, likely in need of an underwear change. I went hunting elsewhere.