I use RSI.
Forget the complicated nonsense that gets written about it, and use it in its simplest application: over 50 means the thing being measured is rising in the timeframe chosen, under 50 means it's declining.
The other rule is just as simple and stupid: if you're using MA's, the MA period should match the RSI period. If you're using 10, use RSI on 10 too.
That's it. All the other fluff built around it is a waste of time.