I have a Day-Sequerra M4. This is NOT the analog masterpiece from long ago; it is a current product. It can receive both the analog and HD broadcasts. In my location, with strong local signals, I always prefer the analog broadcast to the HD broadcast. If their current analog-broadcast tuner section sounds better than their HD-broadcast tuner section, I suspect that the very best analog-broadcast tuners will sound better still. I think the M4 analog-broadcast tuning section is very good but I have heard better. I am presuming that the Day-Sequerra HD reception is as good as HD gets.
What tuner would sound better
The best HD tuner or a Day Sequerra FM tuner.