In the last bull market, the exchange rate of BTC to ETH was 0.0883, while in the current bull market, this rate has dropped to 0.0375.
Yesterday, I asked a macro analyst what the normal exchange rate of BTC to ETH should be. He told me that the normal rate is around 0.045, with a maximum of 0.06.
In other words, ETH is still severely undervalued, and only a return to historical highs would count as a return to a normal bull market state.
If you're still struggling with what to buy, consider ETH, as it is unlikely to lose value.