I'd rank them by significance as runescapepro12 has ranked them above.
Randoms are probably most important, followed by player reports.
I'd imagine that simply doing the same movements, while still capable of getting you banned, is not as important as the other two.
1. Failed Randoms.
2. Player reports.
3. Similar patterns.
4. P Mod or J Mod catches you and you don't reply.
These are the ones how jagex catches you, i think... lol![]()
Has anyone ever had experience with a Mod catching you? I've always heard this but never actually experienced it or talked to anyone who had it happen to them.

