I have compared them side by side years ago, another rebranded 1040 of course, I used the same rooftop but did switch back and forth which someone will come on and say makes the comparison not valid but I did it anyway.
Given the well-known front end overload and lack of proper filtering on both I found the results were mixed but about the same, if I had to pick one over the other I would pick the brand equivalent to the 1040. I tested Amateur, Aviation, Marine and the public service bands.
Since the increase in tdma phase ll in my area I no longer use either.
I will add, both radios are sweet radios and were favorites of mine back in the type II smartzone days. Always had better modulation and clarity than Uniden, hands down.