I just came across this passage (from Habad: the Hasidism of R. Shneur Zalman of Lyady, by Roman A. Foxbrunner) describing the ultimate Chabad Chasid:
Scholarly yet sociable; reticent, yet a capable singer of Hasidic melodies and relater of Hasidic tales and traditions; austere and somewhat ascetic, yet possessing a refined appreciation of this world’s pleasures; earnest but not humorless or somber; deeply religious but not unctuous or pietistic; modest but self-confident; devoted to RSZ [R. Schneur Zalman], but fully capable of thinking for himself: this Hasid personified the profound and paradoxical system that came to be known as Habad Hassidism.
Personally, I think this is a very insightful description. The more one studies Chabad Chasidus, and the rich oral and written literature describing the history and nature of the Chabad Chasidic ideal, the more one becomes aware of the sophisticated inner world that the Chabad Chassid must attain: A controlled balance between worldliness, intellectual and critical awareness - what might be called "class", on the one hand - and the utilisation of that sophistication for the attainment of a higher purpose; an end to which all the worldly self awareness is but a necessary means. Chabad is a path of discipline and intellectual rigour, which harnesses the best and fullest qualities of humanity in the service of G-d. Thus the Chabad Chasid must live life fully, but the fullness of his or her self expression must itself be a manifestation of Divinity. The ultimate Chabad Chassid achieves self-renunciation in the medium of self-completion.
I am reminded of a letter penned by the Rebbe Rayatz and printed in Hatamim, where he describes the novelty of the Chasidic ideal as making an "inner light and life" manifest within the medium of the complete and healthy self. Only once the individual has achieved human completion can the true ideal of Chasidus be realised. Readers are invited to read the letter themselves, its three pages can be viewed here I, II, III.
The Foxbrunner passage is cited in an article by Rabbi Tzvi Freeman, well worth reading in its own right, and available here.