hooks

Hi. New the developing for XenForo. We recently started using XenForo because we were on an old version of VB (3.7) and it didn't seem smart to upgrade to VB 4 or 5. Honestly, VB lost their mojo. So we've switched to XenForo, which is truly 100x better, especially for developing on. We bought...

These two techniques seem to perform the same basic function, in which cases would i need to use a template modification over a hook if the desired hook is present? also performance wise which one is better?