After a game against Bonereapers I am really satisfied with Savage Boarboys with Stikkas. With Icebone and a +1 to hit and wound from a source, the -2 rend on piggies you tend to delete a 20 man of Mortek Guard fairly easy.
I just wish I had some kind of ranged damage, missing good 'ol drakkfoot fireball. Arcane Bolt feels so odd on wizards, since 99 % of times we never want to be in melee combat with them. (f.e. Arkhan being able to cast arcane bolt up to 3 times, move 16" activate their 3d3 damage after their charge, that's cool.)
I am currently arguing with myself about either going for endless spells that do the most of Mortal Wounds, to have a bit more output before going into melee combat OR trying the Unit Fights Last spell as utility. In my current list I don't see arrowboys working.