dwarf warrior would be my choice. The warrior personality helps to mitigate dwarf's offensive shortcomings, the free build and extra BE is super nice both in and outside of war, you can abuse the stables trick if you're active to free up an extra ~10% of land during war, and having 8/5 leets for offense means less worry about ambush. In my experience playing as orc/dryad in previous ages, ambushes are a big problem for sustaining offense and you may not always have the runes to anon each hit.