Yeah it's always a preference thing, but I prefer to place longer trades because they have greater potential for immense profits. So I'll start with monthly (not very useful for crpyto though), then weekly, daily, 4H, and decide from that point if there's something worth investigating further. If I can see a clear reversal forming or a low risk high reward opportunity, then I'll go down to 1H, 30 min, 5 min for an entry. Sometimes it doesn't even matter at that point, as long as you give yourself enough room to be negative for some time. But if you're looking for real precision, you can work on the 5min charts.

1 min charts are quite aggressive and you won't find much in bitcoin because of the decentralized nature of it.