Alex's Comfort Rankings

Heroes ranked from most to least in that tier

S tier (if everything's on fire, this is my comfort zone):
Li Li, Kael'thas

A tier (not quite the god-level comfort of the above, but still quite comfortable):
Malthael, Li-Ming, Gall

B tier (not mastery by any means, but comfortable):
Kharazim (SSS), Ragnaros (Q/bruiser build), Malfurion (tranq, pre-rework -- haven't played him since Malthael patch), Gul'dan, Jaina (not-Ring), Chromie, Lucio, Brightwing (specifically bribe build on Hanamura, otherwise not comfortable),

C tier (needs improvement, but playable if needed for a comp):
Probius, Valla (Hungering Arrow), Auriel, Abathur, Valla (AA), Zul'jin, Johanna, Zagara (Nydus), Anub'arak (only in double warrior comps), Malfurion (dream), Arthas, Kharazim (palm), Tyrael (Judgment; willing to play with Sanct, but haven't really used it much), Morales

Rework tier (have played extensively, but before the most recent rework(s) or heavy sets of changes): Illidan, Uther, Rehgar, Nazeebo (spiders), Lunara (hasn't gotten reworked, but also haven't really played her since her release), Tyrande (skills have atrophied on her tho)