that’s a matter of opinions.
but if you aim for improvements and efficiency, the stug is out of the question.
because again, no turret, too low and often dead t34s will clutter your visual or won’t allow you to shoot the enemy target. less crew ( which 3 in the same spot ) one less crew member etc.
not ideal.
it will become viable with the new update though.
as you most likely will get putted in tunisia and normandy.
where there’s less stuff between you and the enemy.
( which, i i do like and love the stug, but it requires more effort to be used. something that not everyone is willing to put in. therefore, the easy solution is with the panzer IV G. )