My 2 cents would be that the combat system is, like mentioned in the OP, not necessary. There's no need to make it needlessly complex. Something simplistic as suggested, 4 base stats with dice rolls, would be sufficient to allow a sense of chance with some control.
[quote=PhoenixWhite]For the most part it's just a logical use of 'my character does this, and this stat ties into it' if I understood this right.[/quote]
Basically this.