There is no single most profitable pair, because profitability depends far more on your strategy, timing, and risk control than on how much a pair moves. A volatile pair offers bigger moves and bigger losses when a trade goes wrong. Many traders find liquid majors more workable, since tight spreads and steadier range make risk easier to manage.

Tight-range pairs such as EUR/CHF tend to sit at the low-volatility end, held steady by the close economic links between the eurozone and Switzerland. Low volatility suits traders who prefer smaller, calmer moves and tighter stops, though it also means less range to work with.

Usually not as a starting point. The wider range magnifies both gains and mistakes, and new traders often size too large before their risk process is solid. Starting with lower-range majors lets you build discipline first, then move to wider pairs once your sizing and stops are consistent.

It is both, and your risk control decides which. High volatility means larger opportunity and larger drawdown from the same position size. Traders who size down and set stops from range can use it, while traders who keep normal size on a volatile pair tend to get hurt by it.

Gold is known for large, fast swings, and among currency pairs GBP/JPY comes closest in character. Both can travel a long way in a session and reverse sharply, so both demand wider stops and smaller positions than a steady major.