But Bill thinks Taite will win, tell NW, "Ali's clearly in love with Taite."
Last week, Taite, 28, spoke about his feelings with Ali during their single date.
Ali asked if he'd be ready to be engaged by the end of the year.
"If it feels right. It's just knowing I'm with the right person."
"How do you know?" Ali queried, and he replied, "Time."
Clearly scared from his reply, Ali said picking him is a "risk".
The Bachelorette finale kicks off from Wednesday.