The Mahavishnu track was interesting and enjoyable up until the point (4:45 or so) that the synthesizer/organ started contributing to the guitar battle. Didn't kill the whole track for me, but the producer should be shot for the way he mixed that. Plus, I wrote about my opinion of drum solos a round or two ago, re Moby Dick, and this one's went on a bit too long for my taste. The whole thing is a bit self-indulgent, and I would probably have enjoyed it a lot more if it were only six minutes long instead of ten. It was fine, but for me, melody is important, however, and this song didn't really have one.
Snowman does have a melody, and a good one. Did some quick research based on the other comments. I've never seen "The Snowman" nor heard the "Walking in the Air" song. It escaped my notice entirely. Hm. Melody is better without the annoying kid's vocals, frankly. Anyway, this track wins the battle.
103 vs. 104 is a very strong matchup. Tough choice, but the guitar melody in 104 is simply awesome. I'm more familiar with the live version, which is the version on the "Deadly Sting: The Mercury Years" compilation that has been my go-to source for the post-Uli Scorps. Good to reacquaint myself with the studio version, which is better. By the way, the YouTube visuals accompanying this track lead me to offer this public service announcement: never NEVER seriously date a girl with a scorpion tattoo. A night or two of fun, sure. But if you're contemplating a serious relationship, stay away. Trust me.