If you are not going to use it much I would consider renting at your destination dives. Find a couple of different brands that fit well and see if your destination dive shops carry them and then just rent. Keeps you from dragging around wet wetsuits in your gear and saves on weight and bulk when traveling. A thin suit is a different story. Take your own and don't sweat the issues as it is easier to pack etc. A thicker suit and especially a semi-dry (more seals, thicker zipper area, pre-bent knees and elbows) takes up a lot of bulk space and is harder to pack.
If you must have your own suit due to sizing issues (like me) then look around a various semi-dry suits. I looked at Henderson, Mares, SP, Aqualung, Pinnacle and finally chose a Waterproof because it was the best fit and the best value for the money. It fits me like a custom and is very warm. I get just a trickle of water in around the neck without a hood and none with a hood. It is also a very well designed and built suit.
The Novascotia and the Aqualung are also fine suits. As is the Pinnacle Kodiak and the other higher ends suits in their line. They just did not fit my pear-shaped body as well and were harder to get on and off. I need wrist and ankle zippers so that was also a major criteria for me. The Henderson H2 was nice but I am not crazy about ultra stretch suits with no seals and longevity is also a concern with these type of suits.
It is all about fit. Everything else is secondary.
