Since Cr4wler has some big issues with understanding the game, I mean, he compare Pak43 to sniper and 17 pounder to shocks I'm going to put it simple.
17 Pounder pros:
Quicket rotation.
Brace.
Non doctrinal.
Garrsion + flare.
17 Pounder cons:
Cost.
Pop cap.
Cannot shoot through obstacles.
Huge hit box.
Countered by Elephnat or Jadgtiger.
Heavy damage from fire.
Can be destroyed by small arms.
Pak 43 pros:
Cheap
Can shoot through everything.
Pop cap.
Can be decrewed*
Cant be killed by At Gun when placed properly.
Cannot be destroyed by fire.
Cannot be destroyed by small arms.
Pak 43 cons:
Can be decrewed*
Slow rotation.
Doctrinal.
*It's pro and con at once, why? It's con becasue opposite to 17 pounder you lose your crew to fire, but it's pro becasue you lose just a crew, not whole gun and you can easily recrew it later.
the elefant cant counter the 17 pounder only the jagdtiger but that takes time
Good points overall