I use to feel the same way as you as well, but everyone has their own style. You probably just don't notice because some of them look very copy, paste as the next guy.

Trick selection plays a big role, you'll notice watching a guy doing fifteen big flips down stairs/gaps, and quickly grow tired of it. Balancing a lot of different tricks is the key to making a good part, no matter how much you like doing crooks on ledges.

Execution, this involves speed/pop/landing, I really notice this from the more realistic players now, more then ever. It takes a lot more effort to go the right speed the entire clip, pop your tricks exactly right (not an inch too high over a gap/ledge/rail), and landing relatively straight. Some people just pick one thing over the other in that category, spend more time popping tricks just right, over caring whether or not they land decent.

Filming is another personal touch to someone's style, in fact, it makes all the difference to some people. If your filming sucks, people are going to notice, so a lot of us have a good idea on how to make it look now. The key is to find the best angles, and throw your style into it, so if you do big gaps and go fast, owl cams and long lens are really your only option. More realistic people are inclined to follow real world filming techniques, stopping at the top of stairs if a line ends there, following the skater from a single position. Either way, you can choose to get up close and personal with your camera, or try to never cut off your body during your clips, but lots of people have found amazing ways to make their filming top notch.

Spot selection is the last thing I can think of. If someone's part is just them hitting the same, completely obvious and overdone, rails in the game and nothing else, it will not hold my interest, and I will quickly stop watching it. This requires the most creative thought process in the game, in my mind. I want to go into a video and see a few clips where I am baffled and think 'wow, never thought of hitting that spot, that way.'


That's my two cents on that subject anyway.