Danny Brady and Nick Jensen, In Lost and Found and Lucas in Bon Apetit: just look at these Lost and Founds influence on helping create one of the most popular scenes right now between Palace, Isle, Jacob Harris, etc. Bon Apetit and Lost and Found seemed to be the first Euro videos that got serious attention. Those two videos made euro-videos cool. Previously, it was about the Flip guys destroying Hunington when they came over, or American pros getting footage in Europe on 411. These videos defined where they were shot, London for Jensen and Brady, Lyon and other European cities for Lucas.
Dylan-Dylan: while it had a physical release, not only was it influential on future solo releases (Cross Continental, Austyn Unimited, etc), it also really ushered in the era of the online part, which is a gift and a curse.
Koston-Menikmati: That changed tech skating on rails even if the editing style never caught on.
Rob Dyrdek-Memory Screen: I don't know where a bunch of companies would be editing style wise if this edit was never made. It shaped Alien Workshops style, which has often been replicated.
Ricky Oyola- Eastern Exposure 3: This part defines the EE series, and has massively shaped the independent filmers and videos of the East Coast since (Static, Sabatoge, etc).
Pat Duffy- Questionable: Single handily changed rail skating.
Carroll-Questionable/Henry Sanchez-Pack of Lies: Both captured high-end tech ledge skating, primarily skating at the same spot (Justin Herman Plaza) with the same crew (EMB). That's carried over to the defining era of Love with Stevie/Kalis/Wenning, to Pulaski, to Pier-7, MACBA, etc.
Elissa Steamer- Welcome to Hell - Where would women's skating be without this part breaking the barrier? A woman on an all guys team in one of the heaviest videos of the time.
I'm not saying all of these are my favorite parts of all time (most are among them) but in regards to how they changed skating and the way it was presented.