btw regarding little idea, that also includes myself
you're right that it probably depends on each individual's usecase. my 2 cents:
bitcoin:
mainly to store and exchange value
highly decentralized
controlled rather by its users/investors than its developers
based on proof of work, not likely to ever change without consensus
limited supply = better than fiat
scaling problems being fixed by world's most skilled group of developers
can't be mined without specialized hardware anymore
quite secure if you follow some basic principles
questioned by banks and media
ethereum:
rather a peer to peer vendingmachine or supercomputer
highly centralized
controlled rather by its developers than its users/investors
is planned to switch to proof of stake (worth a discussion on its own)
unlimited supply = same as fiat
scaling problems becoming worse every ICO, no idea how vitalik will fix it
can still be mined with GPUs
was hacked already which lead to a fork/split
pushed by banks and media
both is risky, so please educate yourself and decide for yourself - and only because something is/was scammy doesn't mean people aren't gonna buy or use it.
have a nice day!