Vice-grips on your binding posts? Really? Must do wonders for resale. AudioQuest makes a great hand wrench that fits both terminal sizes.
For my speaker cable, prefer bananas on the amplifier end as I need to swap + and - for a phase reversal. Spades on the speaker end is all Wilson will accept.
However, the silver spades on the big Wireworld Platinum cable are soft and sometimes break off when moving the speakers around. Keep a bag of replacements. Oh the problems of affluence.