i agree, but if you take the flop with two people...lets say one has KJ and one has AQ, your no longer a favorite to win the hand
JJ=37.26%
AQ=39.11%
KJ=22.14%

i dont necessarily agree with shoving preflop with JJ all the time, but if you got a read on your opponent, and you want to either A) isolate or B)take down the pot preflop, then by all means, do what you gotta do...i find more often than not, when i play my jacks, and i play them properly, i come out on the winning edge now...

early position at the table, i usually make a small bet, like 2.5-3 times the BB, and im looking for action or tells on opponents...you have to know your player...if you get 2 people behind you calling, your obviously not ahead preflop, and you need to flop a J to take this pot down, or win a big one. If the flop comes all low, dont be so sure that you have the hand...make a bet anywhere from 1/2-2/3 the pot, see what happens, if you get reraised, proceed cautiously, and see the turn or river at your own risk...if you think hes got a set or even QQ or better, let it go...its not worth all your chips with JJ, ALWAYS REMEBER that an ace can fall on the river...and thats what people do, they chase and play aggressively with AK...

middle position i like to isolate the blinds and actually take over position, on the rest of the table so i usually make a large bet, about 4.5-5, maybe even 6 times the BB, same deal, proceed cautiously and if the flop isnt that bad for you, maybe one over, still bet at it...(keep in mind, my style of play is this same preflop betting pattern, whether i have AK, AA, JJ, 9Toffsuit, or even 56 suited) so yes, it seems like its an easy read from any standpoint at the table, but not when i show down 94suited in the same situation...
anyways, if you get one caller to the turn, and the texture of the flop was As 5s 8d...turn 2c

You have to decipher whether or not your opponent has either a weak/or possibly strong ace, or if hes just got the flush draw...in this situation i like to bet about 1/3-1/2 the pot, almost an underbet, but more of a value bet...if he insta calls, you know hes got the ace, if he thinks about it, he most likely has the flush draw...if he thinks about it and smooth calls and the flush doesn't hit, and he still bets out on the river, think back to what you know about this opponent, is he aggressive, or is he passive...and make an educated guess...

late position is the same as middle, but to an unopened pot, i only raise about 4x bb...i generally reraise if theres a single raiser, if theres a raiser and a snap call, i'll just smooth call it and see a flop...all the same rules apply to late position as in middle...also, Tread cautiously on the turn if someone behind you calls, even tho your in late position...ive noticed about 50% of my big hands are getting floated on to the river and someone trys a big bluff on the river, obviously know your player, if they are aggressive and they bet big, theyre trying to tell you something (DONT CALL MY RERAISE) so what do you do, you call that shiite all day long and take his money for floating on you, if he value bets, make a judgement call if you think he has it, fold...if you think he doesn;t, then call and see what garbage he turns up...he may have the flush or straight...you never know, but you can make educated guesses on the type of hands your opponents play by what they show you....

cheers and good lucks with the captain hooks!