If your belief is BTC will go up, go with BTC because you will be doubling the long.
But if you are uncertain of BTC's future price, you might want to consider using a stable coin because you won't be suffering, or gaining, from BTC's volatility.
We were the world's first to offer USDT perpetual contracts and that was under a lot of traders' request. Right now we are witnessing larger turnovers on USDT-based pairs than BTC-based pairs (probably because of the dip):
But if you are uncertain of BTC's future price, you might want to consider using a stable coin because you won't be suffering, or gaining, from BTC's volatility.
We were the world's first to offer USDT perpetual contracts and that was under a lot of traders' request. Right now we are witnessing larger turnovers on USDT-based pairs than BTC-based pairs (probably because of the dip):