My first bird (only gotten 4 since I really got serious about turkey hunting about 6 years ago) was a jake (4" beard). I don't really have a "standard". I would like to get a longbeard, but if a jake presents a good opportunity (later in the season or if I see them several days in a row) I will shoot him). I've had many fun, exciting hunts (many without shooting a bird). My "best" hunt/bird was last spring:

no gobbles (one very far away), set up in a slightly diferent spot but then there were some closer gobbles so I moved tosimilar location as day before, one gobble in the distance and then a bit closer (not really talking to me), then the gobble is right on me and suddenly there are 3 birds dead to my right (3 jakes); got my gun up (I am right handed, so I had to shoot lefty - 1st time for that), last 2 birds backtracked so I got on the lead bird, he gobbled and I shot, my grampa's old Ithaca 16 ga. dropped him in his tracks - double bearded (4" each) and ~15#