Probably Cheekygimp off the top of my head, the guy is consistent and if there would be any major delay, he actually pauses the patreon for that month instead of just cashing the sheckles with poor excuses
Runey is pretty consistent as well, his updates take longer to come out, but they are usually really on point with his schedule, i can't even recall any delays from when he actually calls a release date
MITY used to be decently consistent, but when the greed reaches certain point, the developers stop caring (Jikei used to be pretty consistent as well, until the fanbase grew exponentially and they started to laze about)