Yes thats kind of point of having different vehicle types in the game.
Depends on what gameplay you prefer.
A big caliber doesn’t mean it does major damage.
And a small caliber doesn’t have to be weak.
Br bracket also matters offcourse.
You pick what you like, what suits your playstyles and that brings you the most fun.
Me personally, i play the maus. Is it always fun? No… not always. But does it fit my playstyle? Yes. I like slow strategic gameplay where you can make or break a match. Thats what makes it fun for me. Meanwhile my friend is racing around doing god knows what, but atleast he’s having fun in his own way.
if your new play mediums with a medium reload 6 to 13 seconds to learn they are not to slow not to weak dont have to long of a reload dont have a bad pen try the t34 sherman or the pz4s to learn but once you learn how you like to play, how ever you want