Apollo/Apollyon/Abaddon

[-calypso-]

I find this on wikipedia but i'm not sure how to interpret it:

The symbolism of Revelation 9:11 leaves the exact identification of Apollyon open for interpretation. Some bible scholars believe him to be the antichrist or Satan.
The beginning of Revelation Chapter Nine identifies John's vision of Apollyon/Abaddon as a fallen angel. (Rev. 12:3-4 & 7 show that biblically 'stars' are symbolic of angels, and the fallen angel Satan's/the dragon's "stars" are his "angels"):
Rev. 9:1-3 "And the fifth angel sounded, and I saw a star fall from heaven unto the earth: and to him was given the key of the bottomless pit. And he opened the bottomless pit; and there arose a smoke out of the pit, as the smoke of a great furnace; and the sun and the air were darkened by reason of the smoke of the pit. And there came out of the smoke locusts upon the earth: and unto them was given power, as the scorpions of the earth have power."
The description of the locusts and their function ends with: Rev. 9:10-11 "And they had tails like unto scorpions, and there were stings in their tails: and their power was to hurt men five months. And they had a king over them, which is the angel of the bottomless pit, whose name in the Hebrew tongue is Abaddon, but in the Greek tongue hath his name Apollyon."
Jehovah's Witnesses believe that Apollyon is Jesus

[saz9961]

http://www.youtube.com/watch?v=Mj6_RG2CzDg

[-calypso-]

lol
I know there's a link with Apollo in lost (in mythology Diane -kate's mother- is his twin sister) but my question is : are we so sure that Abaddon is a bad guy/satan... because apparently the jehova's wtnesses considers him as jesus!
And i don't unsderstand the link between Apollo and Apollyon maybe because i'm french...can you explain me if you understand the difference or the link between these two?