My issue with giant spade lugs is that users seem to use pipe wrenches to over tighten them and actually break off the terminals on speakers or amplifiers.
In addition the giant ones don't fit standard terminals well, they slip and touch and short out amplifiers. That often will change the sound.

I consider them the worse terminations to use.
I use Pomona dual banana plugs whereever possible. They are available from MOUSER electronics at very reasonable prices.
Regards,
Frank Van Alstine