Ummm, anything? 
Sorry. Part of the deal is that the best thing would be to try different ones if you can afford it. It’s a bit like putting different components into a system - they may both be “good”, and you may like both - but you may end up liking one Clearly over the other in the context of the application. Best way to know.
I haven’t gotten the sense over time that swapping out parts or drivers of the same spec/values always works, especially if the designer Knew What He Was Doing. Sometimes a better part was not chosen - not because it was more costly - but because the first one just worked better, and/or the difference wasn’t worth it.
Having blathered on about that - with regard to Caps in particular - whether they are the best sonic choice or not, usually better sounds “better”.
or at least Different.