I think it has been a long time since any of the magazines did a transformer article. Would make for a good update!
I think the MRC Dual is the most economical of the bunch and that is why I purchased one several years ago for my layout. I do like the dual amp/volt gauges. I bought a second MRC to power an expansion of my conventional layout, but since I am moving to Legacy have decided to keep it as a spare.
Jim