Best Premium Jet for an experienced player? Hands down the XF-2A. One of the best 13.0s, especially with the new BR Changes (no Su-30SM, Rafale or Eurofighter).
Its Radar is one of the best, being an AESA radar- meaning extremely quick scan and very long distance.
The AIM-7Ms aren’t the best, but are definitely still decent missiles. Just more situational compared to other Fox-1s at this BR (R-27s, 7P, etc.). The AAM-3 is one of the best IR missiles in the game, pretty much being a better 9M.
Its speed is not the best for the tier but still respectably fast. It goes around Mach 1.1 on deck, but can hit up to Mach 1.3/1.4 on a full load a few thousand ft up.
Its flight model is insanely good, with great dogfight capability and turning. The only downside is that it compresses badly past Mach .9, as it is a derivative of the F-16, but since you’ll be floating around Mach 1.0-1.2 when going to the battle and fairly lower afterwards, you will be fine.
Obviously as it only has Sparrows for its long range, it lacks the capability to do efficient BVR with the F-14s, Viggen, F-4F and other Fox-3 buses as the same BR, but you can still hit decently long range shots on them if you catch people off guard. 120CM also gives you plenty of room to defend.
Lacking a HMD is a downside, but not horrific. You can always supplement this with max vertical reach on the ACM, but its missiles aren’t really good for off-bore shots so you’ll be better off using normal ACM.
The F-5E FCU is also good, being like the standard F-5E but with Python 3s and AIM-9P-4s (basically 9Ls). Its a little high for a F-5 and won’t be as great as the F-5C is at its BR, but still respectably good. The F-5T is the tech tree equivalent, trading 9P-4s for HMD.
F-4EJ ADTW is decent, being a slightly worse F-4E. Identical to F-4EJ in TT.
T-2 Early the best Early/Mid Jet Premium in the game arguably. Identical to T-2 in TT.
AV-8S is practically the AV-8A / C. The 9P has slightly less range but slightly more Gs. Better RWR iirc.
JASDF Sabre is decent, but overtiered. Uptiers to 10.0 is horrific. Identical to the other 9.0 JPN Sabre.