I've got the following set up for activity points:
Likes:2 Posts:1 Threads:2 Images:2
The following are examples after rebuilding the data and emptying the cache - plus many high posting users have no points at all.
Also, the post count in these boxes doesn't match the post count visible on a profile which is actually higher.
(This has also shown me that "likes" failed to import from my old forum)