I really have nothing else to compare Bonaire too (my other 30 dives have been in Dutch Springs Quarry) but its AMAZING there...
Coral and fish like you cant even imagine..there are colors on coral that you cant even imagine.
Tutrles / Sea horse / Frog Fish / all kinda inverts
Shore diving is amazing there boat dives are great if you dont want to lug gear around.
Everyone has there fav dive site but there are well over 200 to choice from. I would probaly invest in the book called (Bonaire Shore diving made easy) has great info about all the dive sites and how to get in and out (some can be tricky)
If you havent been there before maybe a few guided dives are probaly the way to go. There is a great guy by the name of BAS I can shoot you his info. He does UV night dives and thats amazing (there are some pics of there on my pic site from the tank I have more if you want.. in fact I bought the UV lights for myself I like it so much)
Dives sites to check out
Hilma Hooker- big wreck (do this in the AM its deeper around 90 feet)
Karpata is a MUST.... looks the you diving on a mountain range.
Something Special has been GREAT lately
There are a few more I can go on and on let me know if you need more info
www.bonairetalk.com has lots of great info on there about the island.