I use Awstats courtesy of the hosting account. But on the other side, i use Analytics.
Crappy host? I am not sure. This is because i am using one of the most sort after hosting company. I have also used other well talked about hosting company and it seem to be the same.
Doing a resource, i realized the wpcron could be responsible for this. Especially when getting high number of visits daily. How true is this?