The maps in the poll are all pretty good and I would not like any of them removed. Of course some are better than others, but I think that automatch maps do not have enough variety as of now, which also somewhat breaks ballance discussions.
Having duplicates of maps doesn't add variety mechanically. Sure, you get different visuals and all but summer/winter versions of maps that are almost identical or even worse than the counterpart don't add anything to the table. If there's two copies of a map I don't want to play, that takes up two vetos for me instead of one.
Voted Semoisky summer because of how choke-y and garrison-heavy it is, but it could have also been Road to Kharkov for how narrow and long it is and the disparities between the two sides, especially for the cutoffs.