Assuming you like the sonic signature of each, the benefits of having everything in a single box probably saves you space, performance, and $$$ over two units. I almost bought the ModWright Transporter last fall before learning of the PS Audio Perfect Wave. I found them both to be pleasing sonically but I much preferred the PS Audio approach to the technology (especially eliminating the need for a computer once the Bridge is available). Between jitter, extra cable costs, extra shelf space needs, more remotes, and more crud in the signal path - one box instead of two just makes sense to me.
That said, with an external DAC, you always have the option to change the sound of your system without changing how you manage and play your files or changing out other expensive components. Both approaches have their benefits and drawbacks.
If you think critically about what you want in terms of sound quality, convenience, and usability, you will probably lean one way or the other. I don't think you can go wrong with either option so long as you are happy with what is most important to you.
Good luck!
That said, with an external DAC, you always have the option to change the sound of your system without changing how you manage and play your files or changing out other expensive components. Both approaches have their benefits and drawbacks.
If you think critically about what you want in terms of sound quality, convenience, and usability, you will probably lean one way or the other. I don't think you can go wrong with either option so long as you are happy with what is most important to you.
Good luck!