Maybe the OP would be better served by not focusing so much on loader lift.
Loaders are mechanically simple, which is why all the various tractor brands have about the same loader performance in use.
There is a difference in small loader dimensions - like the pressure that the system operates. That is not a tractor feature, it is controlled by the relief valve setting. How to adjust it is in your manual.
There is often larger difference in how the advertising/sales department of each brand decides to measure their loader performance. That has been going on for as long as there have been tractors with loaders. You can read about it in threads going back for decades. Basically there is no standard way to compare compact and utility loaders.
And I wouldn't be surprised if there was also a difference between brands as to how much instability they are willing to accept as the load is lifted - and how they calculate that as well.
But forcusing too much on the loader is a side issue when buying a tractor.. They may not be exactly the same, but are very similar in use.
Other things are more important.
Hope you find what you are looking for.
rScotty