This is just a thought ,what would have happened if the first crypto coin from satoshi was ethereum ? I'm sure ETH will be the most favoured digital currency just like bitcoin is today.
And ETH would have been the bullrun driver and many altcoins will always favour since ETH is the key ,just imagine if ETH is 11,000$ ? Many altcoins would have been exploding in value presently
I think it's a vague question to ask because there are different scenarios and the outcome for each would be different on the basis of each scenario.
If ETH would be the first coin while still using the characteristics of the current bitcoin then ETH would be at the same place as BTC is today.
If ETH would be the first coin with the charateristics of current Ethereum then the result might be anything. It could have exploded in price or may be some other coin would have been at #1.
If ETH would be the first coin but then if somebody would have create bitcoin then may be bitcoin would have been at the top or may be ETH at top and BTC at second.
So there are various scenarios and we can't accurately say what could have happened.