Names don't matter much. What matters is that Jackson is realatively cheap and doesn't require any repair unit. It has a turret, is very fast, and has the range of an ati tank gun. All the above combined makes it lethal and unlikely to absorb fire.
The price difference should make panther a better vehicle. Panther has better armour and more health. In reality these advantages are easily outweighted by the range and potency of Jackson's gun, and the crew. So you pay less for Jackson and get the same or even more. Panther to be fully operational needs another unit to follow it and repair. This means that you need another 200-300mp more to make it operational. Add 100+ manpower 40 fuel cost difference plus more tech required and it means USF can field another elite infantry squad plus have some manpower in a bank in the meantime, or get a bit more fuel and have another tank! It is really unbalanced.
Panther ai capability is very low plus you need to pay extra 60muni for it. Additionaly it works close range, which makes the vehicle close in putting it in danger of snares and other sources of at fire. IMO it doesn't make sense and doesn't synergise with its intended function. It is there only to somehow "hide" panther's weaknesses and allow pplayers to say it is good.
The biggest issue is that when panther is fielded there are plenty of at sources on the field which screen Jacksons. Pazookas, ptrs, snares, satchels, piats, elite bazookas/piats plus at guns, etc. The inferior range will make panther dive in all these at sources and absorb too much damage. Without crew repairs it will be out of action too long to have impact on the game. If it is unlucky and gets a crit it will be dead.
It is overpriced imo. If it had more anty inf cabablities and were a premium medium the price would be justified.
The vicious circle can be stopped. Make panther a stronger medium tank and it should be enough to make people build tier 4 for ost. The intended tech should be to build 1-2 vehicles from tier 3 and move on to tier 4. If panther could replace p4 everthing would be balanced. Panther should be similar at dealing with infantry to p4 but retain its at capabilities. Then everything would be back in place imo. Maybe some of panther's health could be nerfed.
Names do matter a lot. It puts things into perspective. The jackson is a dedicated td. The panther is a hybred mix or medium td and a heavy.
The jackson can repair its self. With gteat risk if caught of gaurd. The panther can bounce a lot of incoming fire that isent a deficated td. A jackson cant.
When the panther hits the field axis also have at guns on the field. Also they can have a harder hitting shreck. On can cloak the other can snare it.
The panther is not overpriced. It has great things from 3 different types of units. If it becomes cheaper its stats need to be nerfed, the other way around if it becomes better its that simple.
By making the panther better in ai at say p4 or tiger level it will make both of them redundant. Then those will need buffs or changes to be relevant. The cycle wont end.
They cycle will only end when the 300+ armour KT becomes doctrinal and heavies are delayed quite a bit including panther and comet and pershing a bit as well. Then the td,s can be toned down.