Simple enough:

For your armies which unit do you dislike but feel you have to include because of competitiveness, and which do you wish you could, but leave out because it's just a waste of points?

Auto-includes I personally dislike are Tactical Squads (I think entirely because familiarity breeds contempt).

Stuff I leave out but wish I could use tended to be Honour Guard squads and Ogryns (although the times they are a'changin'...). Grotesques are still a bit on the weak side. Well, not weak so much as overcosted. Servitors too.