My favorites have been :
Fisher cz70 pro
White’s Mxt pro
Idx
M-6
Garrett gti 2500
Apex wireless
Minelab vanquish 540
Deus full w/ 6x9 and round hf coils
Now I do have a few new detectors stashed away and a few like new older models that I just keep around .
Brand new v3i with wireless headphones
Mx7
M-6
Had Mxt all pro but wife got a hold of it and it’s hers now.
Mohave
Used in like new condition
White’s stock idx
Xlt spectrum with all factory acc . And new black max coil
Garrett gti 2500 talking model
Cx111 with carrying case and both coils and new treasure hound deep seeker
Discovery tf 900 deep search