I use some silver coated banana plugs for their conductivity. I have not done any A/B tests and nor is there any warranty etc issues.
Knowing full well that they will oxidize, its no issue replacing them (easy) way down the track or perhaps a quick polish from time to time which is prudent for connections anyway of whatever metal.
Same if pure copper.
Incidentally, rhodium is a relatively poor conductor. Worse than gold (from memory). I don't know why rhodium is sometimes promoted, its certainly not because its cheap.