As the mining difficulties increase, we can see that the transactions are realized with more commissions and they are realized in more time. At times I was sending very low transfer fees in seconds, and in some times I was waiting for hours with a high transfer fee. The best thing you can do in the case you specified is that you can use Nano as you said. But I will give you another advice that you will be free of transfer fees if you trade with this service. You can transfer with NEO or NEO Gas. Although the NEO network is very rarely faced with problems, I can guarantee you that all of your transactions will be fast and free of charge. You can also speed up your transaction by paying too low Gas.
I cant deny that those alts do provide on what most people do seek out when it comes to transfer rate and fees but still people end up on using btc.
Its just a matter of preference though yet you can choose up a wide variety of alts if you prefer those things.