IMHO saving throws tend to slow the game (two separate dice rolls for only one event) and also it breaks my belief in the game narrative when heroes/characters appear to think: “Oh, damn! An arrow has just hit my chainmail! Am I wounded? Perhaps not? I hope it has bounced. Let’s see…”
What is best… 2 rolls that take say 5 seconds or 1 roll that has so many modifiers it takes 10 seconds.
Melee is not a single event. It is someone trying land a blow. The other person trying to prevent it, and then if the blow does get past, the armour may save them. 3 events but only 2 rolls?