I vote for buy Bitcoin. It's the first mover. You don't want to be in alts as the market turns because Bitcoin always leaves the station first. I'm finishing off my Bitcoin purchases this week. I think we are near the low.
I keep buying bitcoin even though the price is decreasing, because I'm sure the price of bitcoin will increase in the future. That belief made me not hesitate to buy and hold until the price reached or approached what I predicted. Bitcoin was born from nothing but in a decade it has transformed into expensive digital money.