DoubleMidi offers reasonable advice but I sure wouldn't commit to the MSP as your body transducer. Stay tuned to the Ischell review thread.
Also, I see no issue with the utility of your poll
so long as you recognize its substantial limitations. Forget MBOL, as others have suggested. Of course, as DoubleMidid points out, the only responses you'll get are from those who have experience with this or that pickup. I considered that to be self-evident. Folks can't answer re unknown pickups. You won't ever be able to determine what's "best." Many who have used this or that pickup are also familiar with the sound, performance, and limitations of others. So, as is always the case on the internet, everyone has an opinion, but some are far more informed than others. You can evaluate that by knowing who is posting. FWIW, I voted for the Rev Solo II. That's my backup to the Ehrlund. Truth be told, as long as I've had the Ehrlund, I've not used the RS II. That experience includes small combo, big-band, and somewhat loud gigs.