I think I know why the LLoyds sounds better. The old multi-band broadcast radios had a wide bandwidth in order to receive HF AM broadcasts in "High Fidelity". The bandwidth of the LLoyds is probably 50KHz or more. That's why it sounds more "Hi-Fi". Unfortunately, it will also receive signals on either side of the "tuned-in" frequency due to the wider bandwidth. It does sound better than the others, but they all have some hum.
The newer scanners sound "more tinny" since their audio bandpass is somewhere around 300-3000 Hz, whereas the LLoyds is probably 100-10,000 Hz.
The scanners sound OK, just like two-way radios sound today, but they still have the hum and sound "noisy".
If you can add a pre-amp in front of the LLoyds and get the antenna fixed, it will probably be the one I'd choose.
Right now at 12:40 AM CST the hum is very acceptable, but I only hear weak unreadable signals.