Awesome. Good luck with whatever you use. Keep us posted on what that will be, please!
Just my experience -- my best single-antenna MW catches (single as in 'not phased/combined multiple antennas') have come from *passive* loops, not active.
Good active loops are best for broadband use, where their amplification helps overcome lower signal capture, boosting signals from below MW up to 30MHz. The best of them are really fantastic antennas -- the Wellbrook 1530LNP is spectacular, with excellent signal to noise over wideband reception.
But for MW-band-only reception, I find simple passive loops are superior. Easily inductively coupled to your receiver's internal ferrite antenna (no bias T- power supply coupled down the feedline, etc.), and with no active components to amplify any signals and therefore to amplify any noise at the same time, passive loops are generally a lot quieter, cleaner. They can have sharper tuning, higher Q and better, deeper nulls, than many wideband active antennas... and are usually MUCH cheaper!
That said though, I love 'em all. They each have their place in the radio lover's toolbox. You can't go wrong having both. I mean, if I am not using larger outdoor antennas, and I am bandscanning over HF at night, I most often want my active, amplified loop... but if I'm really digging into MW DXing with a single loop, I want that loop to be *passive*, quiet and easy to move around for best noise-fighting, signal-peaking ability.
Just my needless 2 cents.
Mike
N0TLD