I am no expert on the GBP/USD. I do not trade this pair and have not done my usual extensive study. However, that being said, I will tell you that when the EUR/USD goes, bullish, and the USD/CHF goes bearish, taking a long entry on the GBP is a pretty much a sure thing.
You can make a SHIT load of money on the GBP/USD. It moves like hardcore on some days. On any given day you can make 150 pips. Again, watch for the bullish EUR and the bearish USD/CHF and you should be good to go.