I have several tier 10s but none currently meta (E3, E4, E5, Grille 15, Strv, E-100). I know that most will say SConq which is fine. I’m slowly working my way up that line, though the Churchills are painful.
Others that you think are, or may be in the future?? CW tanks do change over time. I miss when I E5 was THE BEST TANK!!!