My ideal perfect date is rather childish and somewhat unusual, but it would literally make my day.
My ideal perfect date would be for a guy to take me to an amusement park for the day. Riding rollercoasters until we both pass out, getting to know each other while eating ridiculous amounts of park food, winning a big fluffy unicorn that I wouldn't have no use for, and just laughing together.
After the shenanigans at the park, evening would start off with dinner and a competitive game of scene it?, followed by intelligent, random, funny, and serious conversation. And after dinner is over with, simple goodbyes and leaving with a mutual feeling that another date is a definite yes.
Yeah, like I said, childish, haha!