Flip a coin. Generally you play them all with reasonable stop losses in place. You can back your decision by some other indicators and run with it. Develop a visual method that seems to work the best on past graph movements and run with it. Everybody takes hits, but the smart traders limit their losses so when a major trend move happens (which happens 2 to 4 times a week roughly) it makes up for the losses plus leaves good pips in the plus column. Study to create good entry points and good exit points. Each EA and visual program I have studied in the last 2 years has weaknesses. Minimize them, and let your profits run. Also as everybody has said using wisdom. It is best to trade in phase with the longer term trend. This is up to the trader as to what the long term trend is - Depends on the time frame you are trading.

I wish I had all the answers - If I did, I would be in Tahiti drinking a Mai Tai with a lovely young native girl with a grass skirt - We all can dream!