The W6LVP antenna running on http://ka7u.us.no-ip.org:8074 is doing almost as good a job as the 210' G5RV dipole. The dipole gets down to 15KHz whereas the W6LVP gets down to 60KHz. Generally the G5RV provides better S/N ratios up to 14MHz and the W6LVP does better above 14MHz. This is not a rule though, merely a perception based on observation since it has been up. At any given time either antenna might seem better than the other on a given frequency.
The result for me is that the small footprint W6LVP Magnetic Loop provides almost as good a signal to the KiwiSDR as the very large footprint G5RV. In my mind this makes the W6LVP the more desirable antenna for aesthetic reasons and still provides excellent 60KHz through 30MHz reception.
In my case I mostly provide the service for the benefit of local hams that have problems with noise on their home receivers during HF nets. Of course most of the connections are from all over the place/world and it is difficult to tell what most are listening for or to. Now that VE3SUN has been providing connections to KiwiSDR receivers from current DX-spots, I've started paying more attention to listening on the KiwiSDR. I'm looking forward to a better interface from VE3SUN to the KiwiSDR.
Of course I do catch new stations on the waterfall and add a tag for them just to remember that I have heard them there before.