My point exactly. Your warlords had different weapons, feats, probably powers, even different personalities. Who cares if they had a similar attack bonus (which they probably did, since prime stat, weapon and possibly X Expertise are the only things that change it between equal-leveled characters of the same class)?
they were all in the same ball park...(say + or - 2 at any given moment for a 5 pt spread) but they were far from the same...
let me take an example from play... level 3 PCs
Golath Fighter with weapon talent and an 18 str +1 Greatsword
Shifter Paliden (Cleric) with 16 Str, Wis, and Cha War Axe
Elvin Avenger with 20 wis and expertise +2 Full Blade
Reverant rouge with 16 dex +1 Dagger
Dwarf wizard with 16 INt +1 staff (melee training)
lets look at there attacks here
Fighter great word + 10 Vs AC
Paliden war axe +6 Vs Ac
Avenger +12 (2d20 roll) Vs AC
Rogue +9 Vs AC or NADs
Wizard +5 Vs NADs or +7 Vs AC
they run the gambit from +12 to +6 on there attacks Vs AC... heck the dwarf wizard has +1 over the paliden to hit (Not for long though, the current dungeon has an artafact waraxe we are looking for) by the way I am the wizard...