satan is a concept developed in medieval times. yes there are evil powers and good ones, theyre called human beings. only 2 choices? wrong. there are lots of religions. but of course, in your little deluded world, everything else is satan worship. ha! amusing.
Wow dude, nice love. Just obvious proof that the world is a much better solution that Christ. *sarcasm*
Lucifer/satan/whatever-other-name-we-call-him is mentioned clearly in revelations 12.
7And there was war in heaven: Michael and his angels fought against the dragon; and the dragon fought and his angels,
8And prevailed not; neither was their place found any more in heaven.
9And the great dragon was cast out, that old serpent, called the Devil, and Satan, which deceiveth the whole world: he was cast out into the earth, and his angels were cast out with him.
John wrote revelations while impressoned at patmos by emperor domition around A.D. 90 ish. Some disputes exist concerning the date, some say sooner. Regardless, John could not possiblly have lived in the medieval period. The medieval period began with the fall of Rome in the 5th century. John was very unlikely to be alive at this time. Obviously the 'facts' you have received have been 'colored' to get you to think a certain way.
For a christian, there are only two choices. Serve God, or serve the devil. If it is not of God, it is from deception. Since God cannot deceive, it is from the enemy, a.k.a. satan.
There are only two choices, heaven or hell. There is no redemption without accepting Christ first. No human can come to the father without Christ. Expecting any other response from a Chrsitian chat site, in a forum dedicated to bible study, is foolishness and an obvious attempt at stiring up a fight.
If you have issue with your two choices you should perhaps take it up with God. None of us here that frequent this site are powerful enough to reshape the laws of the universe. Your complaints aimed at us are futile, we are powerless to change it.
As for Guardian angels? No clue.