Hello, Emilio De Soto here. You are fortunate to have representatives from quite a few great wetsuit companies here on the forum. So your post will offer a number of suggestions. I will agree that fit most important, but you also need to take into account how much you want to spend, water temperatures where you will be using the wetsuits as well as what your goals are with using the wetsuit. Finally study the warranties of the brands you buy.
A two piece wetsuit has been shown to be bit more forgiving if they do not fit properly. We have witnessed many triathletes who have bought a T1 over the past 10 years either gain weight or drop weight that would require them to go up or down a size in a one-piece, but not be the case with their T1. A change in weight at most would only require replacing either the Pullover or the Bibjohn, but rarely both pieces.
Also, if you swim in a rather wide range of water temperatures, it would be important to consider how your body responds to being in one wetsuit for the varying temperatures. Many people are just fine in their wetsuit in cold water, but feel like they are going to suffocate from the heat in warmer water. With the T1 modular design, if you want a top for warmers waters, you can buy just our Speedvest to wear with your Bibjohn, or buy our Speedtube to wear with no top at all.
Finally is the issue of warranty. There are 2 year limited warranties and 5 year limited warranties. Ours is unlimited and for a long as you own your T1 Wetsuit. We cover nail tears and rips caused by using your wetsuit for something other than swimming.
I want to personally invite you to try the product out and form your own opinion. Buy it, wear it, test it, and decide for yourself. We offer a 100% satisfaction guarantee so you risk nothing but the time to test it. Please read our guarantee below, see if any of our competitors will offer you the same and let me know if you have any other questions.
100% SATISFACTION GUARANTEE
De Soto Sport offers a 100% satisfaction guarantee on anything you buy from our website. If you are not satisfied with one of our products at the time you receive it, or if one of our products does not perform to your satisfaction within 30 days of the purchase date, return it for a replacement, or a refund. Anything you buy from one of our authorized retailers is guaranteed through the retailer. All exchanges and refunds must be done through the retailer. Their policy may be different so please ask before purchasing.
If you would like help on getting properly sized, shoot me an email to emilio@desotosport.com.