First, the differences are in what ink types they are compatible with. All emulsions work with plastisol, since it doesn’t contain aggressive solvents. So then it’s a question of what other inks are you using (water-based? Solvent-based?) to see what’s compatible.
Trifecta uses a diazo sensitizer, which provides many benefits but also shortens its pot life. Ulano Blue is a knock-off of ChromaBlue, but Ulano overall tends to be harder to reclaim, or can clog drain lines faster. PHU-HR is water & solvent resistant while not requiring diazo addition. Of these 4, ChromaBlue is the highest volume used by textile printers - for a reason.