The common problem with wetsuit recommendations is that wetsuits are specific to limited temp ranges (yes these ranges differ from diver to diver depending on a variety of individual variables and number of dives planned per day). Most divers who dive a range of temps branch out into multiple suits. If you only dive carribean in 79+ waters, one suit works. But if you add in local diving with significantly different temps, using just one suit for all is not very efficient. Personally, I dive a 4/3 in the carribean in 80 degree water. Overkill some might say, but if you are diving 3-5 dives per day and do not have adequate exposure protection:
1. air consumption goes up=shorter dives
2. you are not as comfortable
3. you are more tired at the end of the day
If the water isn't 98.6 you are losing heat.
Most divers end up with a "warm water suit" (shorties for those who want to appreciate sea lice, fire coral, and bruising from ladders when getting back on the boat in rough seas, 3/2mm, 3mm, or true folks from God's Country (South) who like even more - like the 4/3 mm I dive

) and a local diving suit (5mm, 7mm, drysuit, etc with all the bells and whistles that go with them - gloves, hoods, vest, etc.). It comes down to using the correct "tool" for the job.