In general, Fighter isn't a great class. With what I think of as a regular build (the sort of thing a new player would make with 15 point buy) you're an unskilled idiot who can deal good damage and survive physical attacks and has a poor Will save. The other martial classes (Barbarian, Ranger, Paladin, Slayer...) can also deal damage and survive physical attacks, but have more skill points and/or magical abilities, and probably better saving throws.
If that's not what you want, you can make a Fighter with half-decent skills. But this has a cost. Now you're as skilled as the Ranger, but without the magic, and the resources you spent to achieve this came from your physical stats, so the Ranger can match you in battle too.
With a lot of system mastery, you can probably make a Fighter who is a decent all-rounder. But it seems a lot easier just to pick another martial class, as long as you can find one where the flavor fits the character you have in mind.
With a lot of system mastery, you can probably make a Fighter who is a decent all-rounder. But it seems a lot easier just to pick another martial class, as long as you can find one where the flavor fits the character you have in mind.
With system mastery you can make Schodinger's fighter, with excellent all-round abilities, top tier DPR, and all good saves.
Without system mastery, you complain about something you do not understand.
Also, acrobatics for a fighter...a fighter who wears plate? +5 Armour check penalty on that, +2 if you got a heavy shield, even if it was a class skill, you'd still be level 4 before you broke even on that, not to mention that you can't even use acrobatics to move past an enemy wearing medium or heavy armour.
Armor Training reduces the armor check penalty.
By level 4, the fighter has Armor Training I and should have at least masterwork armor. Reducing the ACP to 3. If Acrobatics is a class skill, you have a +4 on the roll, assuming a 10 DEX.
With Armor Training IV and masterwork or better armor, even full plate has an ACP of 0