Republic comes to mind. I can't say which is "better" since I don't have phones from both vendors with which to compare, and I also can't define better for you.
>because they're usually entirely dependent on the big four networks (Verizon, AT&T, Sprint, T-Mobile) for voice and a variety of data platforms.
Yes, that's pretty much the definition of an MVNO.
>because they're usually entirely dependent on the big four networks (Verizon, AT&T, Sprint, T-Mobile) for voice and a variety of data platforms.
Yes, that's pretty much the definition of an MVNO.