Dam, a year and a half ago i made a drow paladin with 18 base charisma, and i made him up to be my first capped toon, ignoring the fact that i sacrificed 4 build points for 2 more cha, which at the time only made loh a bit better and 1 more save all around.
But now with mod 8 and divine might, i already got divine might 3 for +6 to damage for 1 minute 11 times per rest, and at lvl 20 if i eat a +2 cha tome i can get divine might 4 for +8 damage per clicky.
This has made pure paladins with a high charisma worthwhile, just showing my thanks