I have 2 Cressi suits. A 7/5mm Ice semi wet & a Lontra 2, 5mm steamer. They're excellent top of the line wet suits. Many manufacturers however make suits that are just as good. I decided on the Cressi's because they fit me like a glove & therefore do the job they're supposed to do very well.
Just a word of free advice, so it's probably worth just that. Never, ever buy a wet suit just because you like it's look. Get one that is of high quality construction, made from the best materials. Fit fit fit. If it doesn't fit you well, it won't work well. Fit is paramount in a wet suit. Even an ugly elcheapo suit that fits properly will be better than a top of the line suit that doesn't. Well, until it falls apart anyway. Looking good is a secondary concern.