Well, major pairs are something that attracts me the most, reason - High Volatility, better spreads, and fundamental and technical analysis can be done on them easily.
Where do we get access to liquidity for that instruments? Why do you prefer them to something ordinary like futures or options?
so many trading pair in there winch are most usable , its not a big deal , the main issue which is more appropriate to the concept of trading that will be used.