UFC has always been money match over matches based on ranking.
Herring is indeed a legitimate win. He looks awkward but has literally fought most of the best fighters in the world; and he has a record that is more wins than losses. Very solid middel tier fighter. And we can't deny he is tough as nails- even losing he never gives up and can take one heck of a beating.
As far as the win over Randy- When I heard that Randy was 220, saw him step into the match without definition, I estimated he lost about 8-11 pounds of lean muscle mass. At that point I thought he would lose. Even witht the size difference Lesnar's wrestlign did not dominate Randy. On the contrary 1-2 years ago Randy would have taken Lesnar down.
The way I se it Lesnar still has to prove himself- he has the title but is not a true champ yet. He is also exciting and controversial too watch and at least he is not 100% hype like Kimbo was.