Depends on how close you want to be to the action. The Old Garner is down by the paddle boats, dance, hugh tent camping area, etc. This is the choice of many especially with kids.
We stayed in the New Garner section during Spring Break and it was fine for us. Our DD & 6yo DGD stayed with us too. There is still river access and we didn't mind driving to the other area if we wanted to do something. There are tent & RV sites (varied sizes) in the new section, too. Live Oak CG has more trees/shade but we have a 37' fiver and there weren't many choices for site we would have fit into. We stayed in 381 in Rio Frio which was fine for time of year, but in summer it would have been very hot as there was no shade.
2003 Holiday Rambler Alumascape 34RLT