Which tires to replace original TE 225/75/R15/C

Thanks goducks10 for your input and will do. It sounds like a super tire with so much reserve capacity and an LT instead of ST to boot.

But we won't be using our TT again until Spring and I was thinking probably better to wait to purchase/swap in the Sprint instead of having them sit outside over the Winter. In a way I'd like to get it done now but it seems to make more sense to wait till Spring.

Now I need to start learning about TPMS systems.