Taylor is the safe bet. Judah was immensely talented but Taylor is excellent across the board and could take advantage of some of Judah’s shortcomings.
When I was managing a boy band and Josh Taylor was one of the singers, the other fellas in the band used to call him "Taylor the Nail-'er" on account of him nailing so many broads. But when Judah was pulling orderly duty on my wing when I was hospitalized for a rare form of something they call "walking oldness" and a brief bout of herpetic gouty constipation, Zab ain't nailed a one that I know about. But, trust me, neither did I during that same time. I still think Zab wins though. He looked phenomenal VS Mayweather and Zoo for a while. Beat a prime Mattricaint.
Taylor and the rest of his opposition are a level below Judah, Hatton, Tszyu, Mayweather et al. Judah KO.
Judah at the top of his game has the tools to win this fight, but he probably wouldn't. Guy found a way to lose all his biggest fights, Spinks rematch excepted. Taylor is just the more disciplined fighter. Methinks his tartan toughness grinds Judah down.