Question How does Cozumel compare to other dive destinations?

[Quicksilver II]

As mentioned, it cannot compare to any Diving in Pacific, period.
It is one of the better dive destinations in Caribbean. Bonaire and Curaçao are better than Cozumel IMHO.
We found Roatan, Belize, Dominica .... to be a disappointment compared to Cozumel.
Cozumel is easy to get to, has great restaurants and good diving. In cooler months (Late Nov to early spring) Eagle rays are common.
Some small reef sharks and black tips are sometimes seen. Nurse sharks are common.
Not as much fish as Bonaire.

Interesting. I've done a week in both Coz and Bonaire in the last year and thought Coz had a lot more macro. Bonaire was wonderful but I'd still say Coz was more interesting all around. Part of that could be because the drift diving adds a bit more excitement. Bonaire was literally like an aquarium and didn't present any challenges. Guess it depends what you are looking for and how lucky you get.

I know I'll be going to Coz many more times but not sure I want to deal with the expense and travel hassles to get back to Bonaire, despite loving it.