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What an interesting question! From the South Pole, you get the same sky view whatever time of year but of course over summer the Sun never sets so winter is best. Orion (The Pot, Orion's Belt) sits just above the horizon all day and all night in winter and skims the full 360-deg over a 24-hr period, as it does 'invisibly' in summer! To view it from the South Pole you'd need a flat horizon (a given!) and clear skies (not a given!).
As your latitudes move up in Antarctica, you start to get night-to-night variation. From 80 deg S, Orion's Belt rises to around 10-deg in the north in midwinter and dips below the horizon in the south.
Cheers -
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