I have a SuperNova2 (SN2) and a Barracuda2 (B2). The SN2 is better made than the B2 but you'll spend more money on the SN2 because you'll have to buy the jaws separately. I started out with the B2 and it works well but the limited selection of jaws eventually forced me to some other brand. The SN2 was on sale at that time and that's what I bought.
I don't know anything about the Oneway.
If you buy the B2 and treat it well, you can always sell it on eBay and get maybe 75% of your money back. It's a good starter chuck but you'll be forced to another one eventually if you really get involved with turning.
Go into the world and do well. But more importantly, go into the world and do good.