Which one is better experience wise? And which one is it easier to find a empty world in?

 

By the way mind suggesting me a guide on either bandits or spiders and if not any of em a good combat training guide :P

 

I want 99 or atleast 90 defence currently 83

Spiders is easier to find a world, both are around the same experience since both have low hp.

Both are pretty horrible/outdated spots (they used to be great spots years ago, just not so much anymore). You really should look into armoured zombies or zombie monkies. If you're going for a 99, it really is worth getting the requirements for zombies, or at least training at monkies.

 

If you still want to train in one of your two spots, just go with bandits so you don't have to bother with getting monsters aggressive.

Personally, I say slayer.

I Am doing bandits for str. Then back to slayer. Bandits can be a pain to find a world in. But so far a bit of hoping and I find one. Bandits and full guthans and train defence in the bar. You will only have to sit and stare. At a screen and do nothing. Any zammy or sara item is need. Go with anything lol.

I say take the time to do defender of varrock (and any other quests you need as a requirement to do it) and train at armoured zombies. They're much faster and still really easy to sit and do nothing.