There are indeed many favorite EURUSD, GBPUSD and GBPJPY pairs, besides the low spreads and also the most traded ones. Even though the spreads are low, if you can't analyze the market well, it's risky too. I myself trade more often in EURUSD and GBPUSD pairs, more relaxed in buying and selling transactions. The direction of the price movement can be read at least, even though it's only a few tens of pips.