I'm pretty new to this, and after researching a bit, I feel like ETH is going places and has far fewer barriers to expansion that BTC. I want to buy and hold some coins, and as of now i'm leaning towards ETH. but I can't ignore the fact that bitcoin seems like top dog still... so convince me to buy BTC instead of eth. Give a reason besides "first movers advantage" 
ETH is not really bad investment, in fact it is the second highest rate next to bitcoin. BTC though has the highest rate investment that is out now. Slightly predictable with its graph in rate, and very profitable. If you want to play it safe try ETH but if you want higher profit and same risks you should go with BTC since it is the highest value it also gives you highest profit possible. All in all you can invest into both there's no argument about that.