Overall, LED Dredge may be better, but I still prefer this version
Manaless doesn't care about countermagic and wastelands.
And I just love
Balustrade Spy as a win condition... although I only play one to make room for Whirwind Riders, which are also great and have the advantage that they can be pitched to FoW/Shoal.
Another major factor is budget. The only expensive card in Manaless is FoW, and it is format staple so I don't mind the higher price that much.