Tidus4444 said:
A charging Barb 1/ Fighter 5
raging you have 24 str.
Use a heavy spear on horseback. Spirited charge gives you X3 damage
Base damage is 1d8+11
Power Attack for +5 to hit
1d8+16 base damage.
I can't find "heavy spear" in my PHB; I see a "longspear" which is a large weapon. However, unless you are using a LANCE (not a spear), spirited charge does only 2x damage.
Okay, you can simply switch to a heavy lance, which is is medium weapon that inflicts--tada!--1d8 damage. So you're cool. Except for the +11 part, because a character with a Str of 24 has a modifier of +7. You can't get to +11 even if you have Weapon Specialization, unless of course you're packing a magical heavy lance.
You might have been considering that the longspear requires two hands, so you multiply the Str mod by 1.5. However, since you always round down in D&D, that would give you a damage total of 1d8+10 (or 1d8+12 w/ WSpec). The heavy lance, of course, is only a 1-handed weapon.
There is simply no way a character with 24 Str could do 1d8+11 damage without a magical weapon (unless he is a 4th-level paladin smiting evil, or a 1st-level paladin smiting evil with a two-handed weapon, or a 2nd-level paladin/4th-level fighter with weapon specialization smiting evil, or...er...).
I think you're better off with a straight-up Pal6, smiting evil. You lose the rage (thereby losing 2 points of damage) but your smite is good for 6.
Ooh...your supposed Brb 1/Ftr 5 must be a half-orc, or something else with +2 to Str. So I have a half-orc paladin--that's fine. Start with 20 Str (since you said the character had 24 Str when raging), that's a +5 Str mod. Base damage is therefore 1d8+5 (compared to 1d8+7 or 1d8+9 (w/WSpec) for a properly calculated character with 24 Str and a heavy lance). Now, smiting throws in another 6, for 1d8+11. Then add power attack and...woah, that's strange, my legal paladin just did what your miscalculated Brb1/Ftr5 did.
Of course, over the course of several turns, the advantage will turn to your Brb1/Ftr5 because without the smite the paladin does less damage, and your Brb1 probably has a couple more hit points besides. However, the questions concerned damage inflicted in a single round.