The tanks? Gimme a break, they're all mid to late game and don't have the impact as the ISG.
Centaur deals damage, sure, but it's hardly as a broken contributor as the ISG. It's not a game changer. Do 2 Centaurs give utter map control? I have yet to see that.
Churchill/Croc? Very late game. Good combined arms takes those out. Axis that relies on just the blob...ya...you'll get owned.
Pak howie, although fires almost just as accurately, comes much later, and is more expensive. By the time it's fielded, the ISGs have already given OKW/Axis map control.
Air supremacy? Really? A very expensive late game call in? How about...move the tanks. You have plenty of time. It's a camp buster. Gonna live by the camp, then...well, there ya go.
I'll argue the ISGs have a bigger game impact than the "equivalent" pak howie or the tanks. On top of that, the a fore mentioned map control doesn't allow the Allies to get any of those units.
You cannot be serious.
Centaur comes out at the ten minute mark, you call that late game? The thing is worse than an ISG. Worse. It is absolutely a game changer and if you don't think so you have obviously never once played Axis since the Brits came out.... aaaaaaahhhhhh there we go.
Pack Howitzer comes out within 2 minutes of the LeIG. Faster reload, more damage, twice the AOE. It's just as bad.
"Relies just on the blob"- you sound like Katitof now, except I'm pretty sure not even Katitof has ever gone this much off the deep end. Maybe Nabarxos?
The Crocodile instantly deletes any infantry it faces, including AT guns. 3 Paks can fire at it multiple times and it will shrug off the shots and decrew them all inside 3 seconds then retreat. Oh, and it beats medium tanks 1v1.
Air Supremacy one shots OKW trucks. It one shots all Axis emplacements. It one shots heavies with damaged engines that cannot get out of the area fast enough. It one shots everything in the area, unless you see it coming and tell everything to retreat immediately, and tell your tanks to reverse. Sometimes that's simply impossible.
You seriously need to stop commenting on balance until you play something other than USF.