I'm an ENTJ and I still tend to go off on tangents, especially when people are irritating me. This usually is directed towards someone completely unrelated, however, and hasn't the slighted idea what I'm talking about. With the person who is irritating me, I tend to tell them (very bluntly) that they are an annoyance and to go away unless they have something productive to say.
I also think a difference lies in the style of argumentation between an ENTP and ENTJ -- ENTP's I've known tend to just keep going on and on and on and on long after the argument has been lost. Although they have some good characteristics, I'm weary of becoming friends with an ENTP most of the time. Snneeeaakkky.
"How dreadful!" cried Lord Henry. "I can stand brute force, but brute reason is quite unbearable. There is something unfair about its use. It is hitting below the intellect." ~ Oscar Wilde - The picture of Dorian Gray
ENTJs run the world, and ENTPs want to destroy it.
They both have evil laughs.
To a certain extent this is correct. NTJ's are preoccupied with maintaining order. NTP's with creating organization. The former works with heirarchy and sequence while the latter funtion in the simultaneous.These need not be at odds but do to a natural lack of acknowledgement,often are. An NTJ friend of mine and I often refer to each other as Time(j) and Space(p)