The 1992 Flight mix all the way. It's incredible, a 10/10 Trance journey which at the right moment can bring tears to me eyes. In close second place is the Marcus Schulz remix, which I love for the atmosphere that he brought to it, and especially with bringing in the secondary melody found in the 1992 Flight version at the very end to complete the climax and build. It's mind-flight material through and through. Both will be in my top 50, maybe 25 tracks of all time.
Yeah, the original dream version is simply the intro mix counterpart of the original beat version. He should've labelled it in a more clear way. This reminds me of the Signum Intro Mix of Healesville Sanctuary, which was given the name of "ASOT 450 Extended Intro Mix", which ignores the fact that there are two original mixes. Original dream makes it sound like it's an ambient version, or that it's an uplifting mix (which the original beat version already is). Anyway...
For me, the original (without the intro) and the Markus Schulz remix are the best, but I haven't listened to the Gai Barone remixes yet. Either way, whatever version you prefer, you can't go wrong with a melody like this.
I am sorry if this has already been shared. I had to post it because it is one of the most emotional releases in Trance history to me. Every remix is nothing short of spectacular and all works of Trance art. They give you the feeling of transcendent beauty. Would be cruel to ask you to choose a favourtie.