Spades vs. Banana plugs ??

Bare wire....Tube connectors...bfa banana... get yourself a small butane torch and do some ultra high purity copper solder (careful not to set yourself on fire in pursuit of high fidelity)... Or go to an artist or jewelry maker and ask politely without looking like a Sheldon.

Word on the skreets is that lead solder could damage purity...screw up the electron, quark, boson flo, etc...

Yes there are problems with both.Most of the time it depends on how much space you have between the sockets or screws.But I do use banana plugs when possible. 

Depends on your equipment and configuration….I use both to my advantage! 

I have never had the loosening issue with spades that is being reported here, and I do check them from time to time.  

@carlsbad2 - When I use banana connectors, my strong preference is for a minimalist BFA style banana plug - these first, and then these or these.

Pro Tip: Turn your equipment off when you are changing connections. You might save a trip to the repair shop.