Also like the idea of reach but that might be too many numbers for weapons in this game.
I really don't understand that concept of "too many numbers" or "too many variables" for weapons or units and such.
If we play those games on computers, and not on board like some play with their Warhammer Armies, it's also because we prefer to focalise on what's really interesting (tactics, strategy) and not on memorizing hundreds of rules before we roll the dice.
My exemple for armies and combat (though the combat system in E:WOM will probably be different and with a lot more player-control) would be Dominions. Here you have units with a ton of stats (HP, force, resistance, encumberance, protection, morale,...) and they have weapons which have also stats (damage, attack, defense, length; for melee, and damage, precision, ammunition, for range weapons). Sure, that seems overload for your 'conscript' troops (as opposed to heroes and commanders that you can customize with all kinds of magic helmets, armor, trinkets, shields and such...) but do YOU, the player, really care a lot about it?
Some people do. Reading some Dominions forums, I am amazed as I read to which depths of micromanagement and knowledge of the rules these guys go (mainly in multiplayer). As for myself, I usually watch quickly which are the stats of my nation units at the beginning, choose 3 or 4 kinds that I will use ( ex with Ulm: 1 pikeneer from 4 proposed, 1 plate-armor/axe from 4, 1 cavalry, and crossbowmen) and that's it! I don't need to know exactly to which extend my pikeneer with length 4 is better than AI's lizardmen and their swords. I just need to know that more protection is good against arrows, that X does that and I fiddle a little.
That's why I love the motto "Easy to understand, hard to master".
You CAN have tons of stats and abilities but you don't HAVE TO master them. There can be the casual or not-so-bad player who takes a nation, takes a look and play, writing strategy as it comes, and there can be the micromanagement-frenzy guy who spent last night trying to see whether Ulm pikes against Pythium swords gives 75% advantage or only 65%...