Easily my two favorite tanks are the Panzer F and the Tiger 2
The Panzer has an eny which inmho is way too high. It has the firepower to take out any tank in the game at even long ranges. Sure it cant take hits but a H model doesnt do much better. The smaller profile of the tank also makes it harder for an enemy to gauge the correct range, making you a harder target. You also get lots of perks do to its interesting eny which allows for...
...The tigerII!! The only tank in the game that can legitimatly soak round after round like nothing else. I mean NOTHING else, not a tiger1 not a panther, not a T34/85's front turret, nothing. It has a main cannon that can deal with anything even at long ranges, and the zeiss sight's zoom gives a superios advantage over most other tanks. as long as you treat it like a claymore (front towards enemy) It is the litterally the only tank that I can feel confident of surviving a frontal shot in at close to medium ranges. Just dont expose your sides or rear, then you're like everything else.