Gulenko says the central/leaders types are EIE, LSI, SLE (volitional triad) and SEE, LIE, ILI (pragmatic triad). This might solidify at the most intense levels of competitions though. And obviously there are outliers like Mitt Romney (LSE, 3w2). Stereotypically, E3 and E8 are the leaders. Based on your own experience: What do you think?