Doji

looking trough all the charts and was thinking about doji. Anybody ever looked into the best chart time-frame for a doji?
Meaning: A doji in a 1minute chart will most likely not be one in any other time-frame.
So, to see the best possible reverse trend with a doji, is it in a 5, 15, 30min, 1H or higher… chart?
Important, forget the preceding trend, strictly doji.
I just wondered about anybody else’s opinion.

The larger the time frame, the more does the signals it gives are reliable.
Candlesticks works on all timeframes though.