Let me just copypaste my own single class 2h fighter build from my notepad...

Two-Handed Fighter

Human (+2 STR)

1 - Weapon Focus, Power Attack, Cleave

2 - Cleaving Finish

3 - Dazzling Display

4 - Weapon Specialization

5 - Outflank

6 - Cornugon Smash

7 - Shatter Defenses

8 - Greater Weapon Focus

9 - Improved Critical

10 - Critical Focus

11 - Dreadful Carnage

12 - Greater Weapon Specialization

13 - Penetrating Strike

14 - Improved Initiative (free choice)

15 - Intimidating Prowess

16 - Greater Penetrating Strike

17 - Blind Fight

18 - Combat Reflexes (free choice)

19 - Iron Will

This was a MC character, so I wanted decent CHA, hence the full intimidation line of feats, you can replace those if you want. You'd get useful global feats like Imp. Initiative and Iron Will at much earlier level, then. It was my Lawful Evil Greataxe Tyrant build, so I wanted to roleplay the hugely intimidating executioner type, hence getting the Dazzling line asap. Don't actually use Dazzling Display yourself, leave that to somebody like Valerie or Linzi, it's just there to unlock the rest.

The best 2h weapons by far are a greataxe and heavy flail. Greataxes have a huge amount of uniques, and the best one is available as early as level 7 if you cheese it. Therefore, greataxe is my recommendation, though you should pick whatever weapon you like.

Going single class has a few benefits. You get insane damage boost from STR and Power Attack, and you get to ignore 10 points of DR. Two-Handed Fighter is weaponized mathematics.

You always want to fight Enlarged, and eventually, under Legendary Proportions.

근데 상급베어넘기기 안찍는데 안찍어도 되는건가..? 현란한과시 쓰는거면 카리스마는 몇까지 찍어줘야조음?