JPY pairs are much more volatile and tere is high fluctuation in those pairs so I generally like to trade in Jpy pairs specially usdjpy and eurjpy. There are nearly 2-3 news release about usd almost everyday and jpy news are of high or medium impact so it helps me to gain success in ysd and jpy pairs as i always trg to follow news and trade according to the data.Apart from jpy pairs eurusd and gbpusd are also included in my favorite list.