We started a few days early but here is an official message to the Class Representatives .
As you compile your top 3 keep in mind that the goal is provide commentary and specifically questions to the development team which you wish have them address. Try to phrase things in the way of questions that we can answer.
Bad example: You guys are aware that we suck in PvP right?
Good example: We feel that in general our class lacks some utility and cc in comparison to other classes in Warzones. As an example (your reasoning), do you guys feel we are in a good place here? Do you also feel this is an issue?