Both BTC and ETH have been (generally) climbing lately; ETH especially. However, I feel (and I should be clear that this is all my own, anecdotal opinion) like -- even if it is superior -- BTC was "first to market" in a popularist sense and thus probably a better long-term bet. ETH is Betamax to BTC's VHS.
I personally equate it to DOS vs Android. The potential for ETH is massive... granted security concerns, scalability, POS are equally massive hurdles to overcome.