Well, you will likely get some more of "some say buds plus sounds better and some says buds live sound better". The Buds Plus use silicone ear tips that create a better seal, and usually earbuds with silicone tips sound better. Plus with a more classic design, the Buds Plus should fit everyone (3 sizes of tips), while the Buds Life may not fit right or feel comfortable for some people. For me, they don't even stay in the ear. The Buds Life sounds pretty good, but IMO, if the sound quality is your top priority, you will be happier with the Buds Plus.
Just a fair warning do not send in for repair even if they are under warranty because you will never get them back and they will try to find a way to blame you and you'll never get a refund or replacement! I've been fighting with case management already for four months!