Do Slayer all the way, you won't regret it. Why chose Slayer over fast training such as PC or Experiements? With Slayer, you level 3 skills at once (using melee) Slayer, Attack, and HP. You get awesome drops exclusive to certain Slayer monsters. You get lots of variation in your training. With Slayer, you tend to get ace loot, including clues, meaning more reward. Experiments, Rock crabs, PC - ZzzzZzzz, how can you not feel like shooting yourself after 10 minutes? The immature grunts that train there will annoy you, and getting bones as drops doesn't sound very appealing. Enjoy yourself, train Slayer. :D