I have a few friends like that. Funnily enough, one of them - before he got into anime - would essentially act the same way at parties in HS except it would be him raving about Batman being the best super hero. I used to love finding a seat across the room from him and wait until his drunk ass made eye contact with me, only to dead-pan “Spider-man would kick Batman’s ass in a fight, every day of the week” and watch him spill his beer all over himself & his girlfriend (who was a mutual friend) as he flipped the fuck out. Thanks for the memory lol.