As long as your opponent is attacking you in a "traditional" manner (with the strikes and techniques you have been taught to defend against), the techniques will work however, one is seldom if ever attacked in such a manner or style of attack.
In the real world, the over whelming and vast majority of attacks come from surprise, instantly devolve into close quarter combat in a "swarm and harm" manner, punches thrown in bunches and coming at you from all angles or with a submission hold applied at the beginning.
All three of the styles you mention, as well as most "traditional" styles, lack realistic training as the attacker is supposed to throw single strike and then wait as the technique is applied as part of a one step, three step drill, etc. In real life, such never happens.
Even when traditional stylist "spar" in a version of controlled combat, they instantly drop their traditional stances and forms of strikes so as to attain greater mobility, so as to be able to control distance and so as to move with the flow of the combat.
For close quarter combat, jujitsu is effective and applicable.
Once you have broken away from the close quarter combat, the strikes and kicks of Hapkido become more effective and then the take downs of Hapkido or Aikijujitsu/Aikido become more effective.
Reality teaches and proves that the simpler the technique and the style the more effective and useful the same will be. The same also teaches that in any real combat situation, you must have the physical ability to endure or take a punch, to withstand the attack and you must possess the strength and stamina to fight until the fight is over and that is one area that most of the traditional styles do not place a great deal of emphasis on.