I am feeling slightly torn between two answers pending on what I have seen but I guess I can only learn from my mistakes =D
Well, personally I would think inserting foreign chakra into your system would be the quickest way to dispel any genjutsu. I don't think in certain situations it's the easiest but I think if done, it is the quickest most natural way as it instantly dispels the genjutsu and requires minimal effort on the users part. Kai requires effort and mental work as it forcefully stops the users chakra flow, it also requires a hand seal and certain genjutsu can prevent you from doing so.
[Insert fight scence between Naruto and Itachi here to enhance reasoning].. U_U
Even in the manga, the preferred method is inserting foreign chakra, in our RP it has been made easier to counter genjutsu but the time taken for inserted foreign chakra dispel is almost effortless and instantaneous. For example, it's not that a Jinchūriki is impervious to genjutsu, but the fact that they posses foreign chakra in them which allows the Bijuu to lightly tap in B's case(In my opinion slightly push their own chakra into the hosts system like what happens when Kurama he takes over Naruto's body in the beginning of the manga.)
This process also seems to have an instantaneous effect, Ha ha I feel like I am beginning to ramble on...
Well, personally I would think inserting foreign chakra into your system would be the quickest way to dispel any genjutsu. I don't think in certain situations it's the easiest but I think if done, it is the quickest most natural way as it instantly dispels the genjutsu and requires minimal effort on the users part. Kai requires effort and mental work as it forcefully stops the users chakra flow, it also requires a hand seal and certain genjutsu can prevent you from doing so.
[Insert fight scence between Naruto and Itachi here to enhance reasoning].. U_U
Even in the manga, the preferred method is inserting foreign chakra, in our RP it has been made easier to counter genjutsu but the time taken for inserted foreign chakra dispel is almost effortless and instantaneous. For example, it's not that a Jinchūriki is impervious to genjutsu, but the fact that they posses foreign chakra in them which allows the Bijuu to lightly tap in B's case(In my opinion slightly push their own chakra into the hosts system like what happens when Kurama he takes over Naruto's body in the beginning of the manga.)
This process also seems to have an instantaneous effect, Ha ha I feel like I am beginning to ramble on...
