The US produced miracles during WW2, churning out in huge numbers some of the best equipment of its class in the world. But the minute someone says the Sherman might be better, or heaven forbid the US build a heavy tank line, the reaction is akin to "get your torches and pitchforks"!
I see the Sherman as akin to the P40, Zero, Bf109. A good mid-war tank capable of being upgraded but being behind the state of the art in 1944-45 and the production decisions of 1942 meant the US Army didn't have the full gamut of options available to it in that time-frame.
Chieftain had another vid that takes on directly about Sherman verses other best weapons
Good one for TD's also which he wrote a book on
As part of the general discussion here I am curious how many folks here are familiar with this:
The United States versus German Equipment
This is generated from an exchange between 2nd AD and Eisenhower in March 1945 after they'd come off of follow-up combat in the same area of earlier Operation Queen where German guns had longer ranges over open terrain. Lot in there on Ground Pressure and flotation - - M5 lights had less than Panthers because of track width based on physical tests by troops in the field. Much harder to get in the simpler paperback - the deluxe version has a lot of error in it even though its prettier. Also about 76mm muzzle blast.
Also
this, the French findings after they constituted a couple of Panther regiments after the war, before they could get their own tanks - highlights the mobility and reliability strengths of the Sherman. You might make the dash across France with Mark IVs, but certainly not Panthers.
I think one of the more interesting points Belton Coopers book makes unintendingly is how robust the maintenance structure is in support of a US Armored Divisions and the importance of battlefield possession after the battle - if you don't burn a Sherman out and ruin the armor its coming after you again - for the Germans then its like being in a zombie movie.
On the 75 HE thing, be interesting to know why the WAllies didn't look at Panther 75 ammo and copy how they solved the HE vs AP round problem. Also be interesting to see what would have happened if the 76 and 90 mm had enlarged propellant charges to boost up muzzle velocity from 2600 fps to the 3K+ of similar German weapons - probably similar performance.
Done right with some imagination and innovation I could see 90 mm armed vehicle(s) that could do all the jobs: SP artillery, tank killing, and infantry support, with the right ammo design AND help satisfy the "getting everything" over seas problem. 25lbr is after all about 88mm. Have to be an early decision to go from 105 to that though.
I think an interesting ATL would be about 4 buddies from West Point in the WW1 era that go on 2 to Artillery, Infantry, Cavalry, one of the artillery guys ends up in anti-aircraft artillery. Through push-pull of their discussions they come up with concepts and doctrine, they gain a lot of influence in the interwar US Army, and all that translates into a very differently equipped US Army in WW2, with a much wider use of the 90 mm gun. I pester Claymore every now and then with these ideas
.