I'm right there with you AuldGrump. I've always said that I would be willing to pay cash to see Captain Kirk vs (Adam West) Batman in a fist fight. These two characters seem evenly matched; both are the leading characters in their own sixties era campy sci-fi TV shows, both are played by middle-aged out of shape ham actors, both dress up in colourful outfits, but most importantly: NEITHER HAS EVER LOST A FIST FIGHT!
I don't care if it's CGIed, animated or live action; I think it would be hilarious.
Kirk could have the old Star Trek battle music playing "DA DA DAA DAA DA DA DA DA DA DA" and Bats could have his big colorful ZAP! BAM! CRASH! KAPOW! graphics flashing on screen. Kirk could do the double-fisted-punch™ and Bats could retaliate with his swing-flying-kick™. It's be great! Who wouldn't want to see that?!?
And just for fun, they could have five generic thugs (Thug 1, Thug 2, ect.) from the Batman show battling five red shirts in a battle-royal. That'd be equally entertaining since none of those combatants has ever WON a fist fight in their respective shows. It'd be fun to see if ANY of them would make it to the end alive.