360 Crankshaft Questions

Hey all

Some more questions but this time they revolve around the crankshaft (very poor pun, sorry).

#1. Is there a big advantage to changing from a crankshaft with a 3.58" stroke to 4"? On the surface it appears yes but opinions please.

#2 Is it a big deal to switch to a 4" stroke crankshaft? I realize it affects other parts I buy with the engine rebuild kit but again opions from the experienced please.

#3. What is the big difference from a forged crankshaft compared to a cast one. Is the forged one stronger/lighter both? As I am not racing the Dart am I OK to stick with a cast one?

Thanks again everyone.