I like charisma

Class: Brawler 1/Warpriest(Sacred Fist) 3/Paladin(Oath of Vengeance) 4/Unchained Monk(Scaled Fist, Master of Many Styles) 7/Swashbuckler 3 (then back to monk or paladin for the last 2 levels)
Race: Aasimar

STR 16
DEX 14
CON 12
INT 10
WIS 14(16)
CHA 18(20)

Feats
1 Noble Scion of War
3 combat expertise
4b improved trip
5 dragon style
7 boar style
9 ascetic knight
9b boar shred
10b dragon ferocity
11 dodge
13 osyluth guile
14b combat reflexes
15 vicious stomp
17
19
20

Class abilities
1 Unarmed Strike, Martial Flexibility, Brawlers Cunning
2 AC Bonus(Wisdom to AC), Unarmed Strike, Flurry of Blows, Aura, Blessings(Darkness and War)
3 Fervor 1d6
4 Blessed Fortitude
5 Aura of good, Detect Evil, Smite Evil 1/day
6 Divine Grace, Lay on Hands
7 Aura of Courage, Divine Health, Mercy(shaken)
8 Smite Evil 2/day, Channel Wrath
9 Stunning Fist, Unarmed Strike, AC Bonus(Charisma to AC), Fuse Style
10 Evasion
11 Fast Movement, ki pool, ki strike(magic)
12 ki power(), still mind
13 purity of body, style strike
14 ki power()
15 ki strike(cold iron/silver)
16 Deeds, Panache, Swashbuckler Finesse
17 Charmed Life 3/day
18 Deeds Nimble +1
19
20