Not sure I would take a 1 year old, at that age the resort pool will be plenty fun.
We did one day at Typhoon Lagoon last summer and our boys were 7 and 4. They are not strong swimmers and the younger one doesn't or didn't swim at all then really. A little stressful in the wave pool, yet they wanted nothing to do with the kiddie section of course. We liked the lazy river but it was crowded and I had the little one on me and DH had to hold onto our 7 year old's tube the entire time. We did one family raft slide and that was really all we could do with the kids. They are of course asking to go back this summer when we go, but I am not scheduling it this time. Not worth the cost I don't think, I'll save the $$$ for food and other stuff.