NiceHash, you always get paid in BTC
nicehash is better autoconversion and plenty of coin there less limited, also profit is higher because they control more hash, still it's better to mine etheruem
I'd like to mention that MinerGate is not just a service, where users can mine cryptocurrencies in order to exchange them for bitcoins. What we are focused on is driving the further adoption of cryptocurrencies by providing an easy-to-use service and software that can be used by anyone who has a computer. That's why we developed a GUI miner and implemented variable difficulty for effective CPU-mining.
That said, you can easily exchange the mined coins for a bunch of other coins (including btc), using an instant exchange
https://changelly.com. You can even send an invoice to your MinerGate account:
https://changelly.com/blog/introducing-invoices/As for the hash rate, well, yes, we didn't manage to capture the entire Ethereum network on the third day after release. Please give us more time