Ive been looking at buying into an altcoin in the fear that bitcoins blocksize fucks things up for it but im unsure which one i should go for, The 3 that are on my list are litecoin,dash and etherium but im not sure if these are worth buyingto or if the money would just be better spent on getting some more bicoin?

I already had about 10 dash that ive now either formatted or is hiding away in one of my hdd, but id be interested to hear what the community thinks.