My favorite villager, Grizzly, likes the Blend with the regular amount of milk and 2 spoonfuls of sugar. It seems fitting for him...a nice, average cup of coffee for a no-frills, chill kind of guy.
I love how your least favorite villager Cranston likes Blend with no milk or sugar, which is basically the antithesis of your favorite villagers' choices. Sorry if I gave you another reason to hate him.
My favorite equally cuddly and muscly jock, Teddy, takes blended beans with the regular amount of milk and two scoops of sugar. He and Tangy are the only two whose orders I've memorized so far!
My overall favorites, Marshal and Fauna, have already been mentioned, so I'll share a couple of my other faves.
Lolly: Mocha, with a little bit of milk and one spoonful of sugar. Papi: Blue Mountain, with "the regular amount of milk" (what does that even mean) and two spoonfuls of sugar. Avery: Kilimanjaro, with a little bit of milk and one spoonful of sugar.
I was tickled to see how many villagers there are that take their coffee the way I've come to prefer it - with no milk or sugar at all.