Re: Stick to altcoins or switch to Bitcoin or stablecoins?
Obviously I think there are some people who should convert to stablecoins because they know that stablecoins are pegged to fiat, fiat will also be devalued, but fiat is preferred for this period as the market starts to gradually decline thus completely eliminating the risk. Either holding Bitcoin or stablecoin is the most appropriate choice, but it totally depends on what your game plan is, if holding bitcoin, stablecoin, that's better.
Like you said, it depends on the choices but a general rule of thumb is to diversify one's crypto portfolio because like every other market, crypto market also comes with its own risks which makes it quite a volatile market. It is recommended by many proven traders that we should always ladder sell towards a top (aka taking profits) and keep this funds for when the market corrects (it usually does) use it tobuy back your stack with a nice increase too
