I kept seeing stuff about people's least favorite rudiment or hardest and i wanted to see whats every ones favorite rudiments are.

Mine is the grandma. I just love the way they sound and its with the 2 left accents.

i love any alternate way of playing sextuplets.
paradiddle-diddles, shirley murphy's, triple strokes, anything like that
especially when they pop up right in the middle of a song.

I love playing a ton of rudiments but i guess my favorite one would be cheese inverts but they're all fun, it's so hard to pick a single one out.

I like Grandmas as well, but also Paradiddles and Paradiddlediddles.

any accented variation of the paradiddlediddle

cheese fives and any form of those are great

Diddle Egg Five

Swiss Army Triplets with the second note diddled / accented. Could do those all night.

Flam Drags are definitely my favorite. I just love the way you could spice up regular triplets with those.

My favourite is the Paradiddle; one hand plays accent-tap with a doublebeat while the other plays a tap-accent, and then the hands switch. It's the best rudiment, since (depending on your philosophy) it covers all or almost all stroke types found in drumming, on both hands.