Definitely requires more skill.
You have to survive under higher pressure from gravity, and always try to be staying inside the dojo.
The only luck based part, is finding a person who isn't a complete noob and shovels.
Hell no. Other than shovelling it requires skill. Openers (the majority) in aikido don't really count for a lot unless your plan is to shovel your opponent. Openers in wushu are always almost 2 turn/3 turn moves that determine the rest of the game.
I'm not an idiot and I obviously know that there are exceptions. In wushu, talented players are able to make comebacks. The fact remains though that in wushu openers affect the gameplay more than in aikido.
Wushu does require skill. I'm not denying that. But, aikido requires more skill.
EDIT:
Galrath, thats great that you think every mod is luck based, but in your opinion which mod requires more luck, Aikido or Wushu?