Hey mofojo,
You tickle my funny bone with this question! I purchased both speakers after reviewing them and use them in my different systems. Which do you like better a Porsche or Ferrari sports car? Oh, I’m sure you believe I have an underhanded and nefarious reason to not answer your question in the past. My position is they are both superlative world class reference level transducers with very reasonable prices for what you get compared to much more expensive speakers that they out perform. If you read my reviews regarding the details you can get a perspective of each models strengths and differences. Their is no "BEST" speaker, there’s lots of great speakers and it boils down to your room acoustics, synergy in your system driving them, and personal taste. For example, the Model 100 is physically a much smaller speaker then the giant Ulfs, and has a built in amp which powers an adjustable bass coupler 10 inch driver. Therefore, it will perform better in a much smaller space then Ulfs can.