@MarioRedfield: Yes he is. speedForceSpider is correct.
@DBZ_universe: buhhan is way stronger yes but super buu?
Heck even in the anime King Kai said that Planet Vegeta was blown up by a meteor.
Always found that funny.
For me, to put some logic behind it, Kai knew what Goku was like, therefore he lied about Frieza knowing he would go after him. Kai possible tried to stop Goku from being killed.
Unless there is a scene I cannot remember of Kai saying something that would contradict ^that^ then it'll be very hard to be logical. :P
Watch episodes 274, 275 or 279. They feature Goku fighting Ultimate Gohan, SSJ Goku and SSJ Vegeta having the upper hand against Super Buu and, finally, Goku's statements about Kid Buu. Any of those can end this discussion, since I said in the description that this thread CONSIDERS FILLER.
@Sonata: Have you considered that he might just have lied to Goku? Even when he knew it would be useless, King Kai still tried to convince Goku not to fight Frieza - what if he figured that Goku would go after him if he knew about what really destroyed planet Vegeta.
@danzi97: Why would King Kai lie about something as important as the his alien origins? No you are basically assuming he knew such things as Goku would fight Frieza which had no evidence to the contrary Are saying King Kai can see into the future? based on what exactly.