Art of Anarchy is, in my opinion, creatively the lowest point in Scott's career. There are a few stand out choruses, Til The Dust Is Gone being one of them, but for the most part it's all just bland and uninspired. Vocally, the use of auto tune is so horrific that Weiland's voice is hardly recognizable as human. And instrumentally, it's just generic post-90s metal, with generic Spanish style guitar solos and everything.
Velvet Revolver, instrumentally speaking, has the G'n'R sound. Now you can take that as a good thing or a bad thing, but one thing it isn't is generic. But melodically, Weiland did so much different stuff over those two records it could easily be called his creative peak. Fall to Pieces is one of the most iconic melodies he's ever written. Same with Slither. Then you have under rated songs like the Last Fight and of course You Got No Right.
And then vocally, Contraband is probably the strongest performance he's ever put on record. The range he displays from chest voice to head voice to falsetto is almost mind boggling. Just listen to the falsetto he reaches in Headspace, a goddamn hard rock song. Who comes up with that stuff? Weiland at his best, that's who.
But back on the topic of which of these two songs is better, it's hard to see this as a competition. Til The Dust Is Gone is an above average track on a bland and uninspired metal album. Fall to Pieces is one of the most iconic rock ballads of the early 2000s.