for me (I'm short) TYR better than Speedo suits: I love Vanquishers
Holy guacamole, this is an old thread.
But what the heck, I'll join in. For practice suits, I have zero preference. I've worn Speedo, Nike, and TYR practice speedos and have been sufficiently happy with all of them, and was a Speedo tech suit zealot from the 90s up until 2016. In 2016 I started branching out, and now I've worn tech suits from A3, TYR, Finis, and Adidas, and am currently debating between an Arena and a TYR for Nats in April. If Speedo hadn't kept treading water on the LZR Racer series for so long in the 2012-2016 timeframe, I'd have likely stuck with Speedo for my tech suits. As it is, about the only thing I think Speedo has going for them in their tech suits is they generally have the best coverage for my big butt and they tend to be a bit more comfortable for all-day wear at Nats than the others I've worn.
The only suits that have staying power for me are the Speedo Endurance and TYR Durafast - these are 100% polyester suits. I have tried other suits that were a spandex blend and they never last more than 3 months before they start to stretch terribly. I take very good care of my suits too.
If I were to choose one of the two (Speedo Endurace or TYR Durafast), I choose Speedo Endurance.