I have experience with neither, but I do have experience with three tracey Cox strokers (The rounded ones) and one Lovehoney stroker (The black one) and my recommendation would be the Lovehoney one. In our experiences, the tracey Cox was thinner material (Although remember I am talking about different products from what you linked) anyway, they all tore within a few months or so. Our lovehoney stroker is still going strong like, 18 months later, without a single sign of damage or wear.
However, the Tracey Cox ones, in my partners experience, felt slightly nicer during use!
So, I don't know what to say other than, if you want durability, go for Lovehoney one. It is worth noting that products like Tenga Eggs and Flipholes also have a shorter shelf life than other more durable products too, so if you want the softer feeling stroker, go Tracey Cox. It is also worth noting that, just like women, every guy will have a different opinion on what "feels the best"