I like Eth a lot and as a matter of fact currently have a larger portion invested in it compared to Bitcoin, but I doubt that it can surpass Bitcoin in both price and value since the latter is too popular.
There is no guarantee that Bitcoin will always remain as the no.1 crypto-currency, in terms of popularity and adoption. If you check the stats, then you can see that the Bitcoin market dominance has fallen from 90% to 37% during the last three years.