Eth and most alts seem to be weaker than 2017 bull run. It just follows Bitcoin from September last year ranging between: 0.026 and 0.034BTC .
I think that this has to do with Bitcoin gaining dominance due to tether endless printing USDT's and the halvening in 2020. Perhaps in 2021 Ethereum and altcoins will start gaining dominance once again.
right now no bull run is going on just prices are stable for now specially BTC and your are right that if you compare the price of BTC with other then alts prices are lower. because there is no hyper buying of alts right now in 2017 hyper buying of alts happens and prices go up