Don't Look To The Eyes Of A Stranger.
Yes, a big part is nostalgia. Not even gonna deny that. But we are talking about "favorite" not "best", so even if the song has its issues and problems, it can still be one's favorite.
The production on VXI sucks. That's not a surprise to anyone. The performances are a bit inconsistent. There's a single failed palm muted note right before the frantic instrumental section. The lyrics aren't particularly exciting. Those are the issues.
Everything else is fantastic in my eyes. It's one of the times Maiden has used a G#minor key and it sounds great with Blaze. The song starts with a mysterious atmosphere, goes into a rocking section, crashes back down to a chorus before going in a long and atmospheric section building up the energy. I absolutely adore that part. The melody is great, the dynamics getting more intense really gets the hype building up and it all explodes into one of the strangest and most unique instrumental sections we've ever heard in a Maiden song. The melodies are brilliant (though they could've used harmonies. Fun Fact: The first cover I ever recorded was a cover of this song and I obviously added the harmonies
) and the solos are absolutely phenomenal.
The song structure is quite interesting as well and I wouldn't change a thing about it, nor would I cut a single second of the song.
Also, the hilariously off-beat Blaze in the ending is the perfect mix of funny and endearing.