The SDA1104X-E trounces the Rigol 1054z,
But at the cost of about $150 more. (So not Apples to apples)
It has more memory per channel, more wfps per channel, is 100mHz out of box, upgrades to 200 MHz perhaps, and comes with what I believe are better stock probes.
There’s a reason Rigol lowered the price and is throwing in all the licensing options now.
I don’t know much about the GW Instek yet.