It is indeed a fact that bitcoin is still currently at the top but if we are going to look at ETH, there's a lot of improvement that occured on it over the years. It may look very different with bitcoin since it experienced a huge crisis for the past year so I think it is not really a smart move to swap all your ETH for BTC. Bitcoin is still barely shining once again but who knows, maybe it would make you more genuinely happy soon if ever BTC regains its composure of being a great crypto.