LOL. Panthers are not meant to flank or are long range units. As i said before every heavy tank is expensive. for every tiger you can build 2 jacksons. now 1 jackson is not sufficient but will wipe out all heavy armour safe for the elephant and JT.
You are missing one thing.
Yes, for evey Tiger you can get 2 Jacksons which can rape alone Tiger. If you keep pak40 close it won't be that easy but that's not the point.
Point is, you are spending many resources for 2 pure AT unit to counter Tiger. Once Tiger is dead (or hiding, attacking second flank) your Jacksons are eating upkeep, pop cap and stading useless.
US Forces lack of a generalist tank that would be great/good vs infantry and vehicles like Tiger, IS2, King Tiger.
It's getting worst vs OKW. Why? Because you need 2 Jackson to counter KT for example, but you also need Sherman or M8 to fight Obers and Volks cause USF infantry is useless vs vetted OK infantry.
So, how you can get to much fuel? How much more micro is involved to counter glass cannon Jackson, fragile M8 and few inf squads?
On the other hand, OKW is moving with A-very skillful-blob of vetted Obers/Volks.
Let me be clear, M8 is amazing, once in 1v1 I thought Im done, but few M8 saved my day but like I said, it's very micro intensive when you compare to OKW.