From a design or presentation point-of-view would you rather have an indicator:

1) give you a buy/sell or long/short signal

- OR -

2) show you all of the pieces and you determine what to do

- OR -

3) the option to have both?

What I have learned (about myself) is the more "stuff" on the chart the slower the reaction time. More information seems to cause "second guessing".

But with a simple buy/sell trigger, either I take the trade or I don't. There is nothing to think about. Once in the trade, all I have to do is manage the money either by setting SL and TP or making a discretionary call.