The very first response to this thread remains the best (IMO) - The Sewell Silverback plugs offer two set screws and can handle speaker wire beyond 12 gauge just fine in my experience. These are similar to the plugs Rotel used to ship with their amps and I fell in love with them then. Now, with easy Internet access, you can pick them up in a number of places.
https://sewelldirect.com/sewell-silverback-banana-plugs-dual-screw-lock-6-pair
That's 6 pairs for $16. So, under $3 a pair.
Never have I had an issue with them not fitting securely or pulling out by mistake. Their springs are very firm, but not so firm as to damage the binding post. It's just an ideal solution. I have about forty of them in use in my system and have never had an issue.
Advantages: No wires sticking out to short anything out. Convenient to remove from amplifier/wall/speaker. Looks nicer (?), Backs are plastic, makes it easy to grab.
Disadvantages: Additional cost. Takes time and the proper tools to install them. (wire strippers, tiny screwdriver). Poorly built ones could pull out or have to much tension.