Excuse me?!

I'm not sure where you get the idea that rosewood "wears out" faster than maple, but considering that rosewood in much harder than maple, that idea seems unlikely at best. I know this is part of The Endless Debate, but since certain facts are known regarding the two species of wood, certain statements must be questioned.

I have never seen a worn-out rosewood fretboard, but I have seen plenty of maple fretboards with nice deep worn spots. I've been playing guitars with maple, rosewood and ebony fretboards for 48 years now - including guitars I have owned for almost that long and I don't have ANY worn-out fretboards.

Maple definitely sounds brighter but there's moments when you simply love the warmer rosewood sound better. I have those moments, too. That's why I own and love both!

That's how I feel as well! I view it silly to try to make one appear superior to the other. This is as dumb as trying to say a Strat is better than a Les Paul. They are both great and, let's face it, they both have pros and cons. I play alot on maple but, when I pick up my Mustang, the warmer sounding rosewood is an old friend saying, "Back again huh, Pal?"

Absolutely right! In fact, and that's what I wrote in one of my first posts in this thread, you could ONLY OBJECTIVELY compare both woods, if you'd play the maple neck, record it, then route it down and attach a rosewood fingerboard. Nobody would do that just for a test.
So, since this is no option, the only way to compare them is to play to Strats with exactly the same features, except the fingerboard or swap necks. It will lead to a slightly different result in tone, every guitar has it's own "soul" but it would make it at least compareable up to a certain point. It's really hard to compare both, especially since even the knowledge about which wood is on your neck MIGHT(!) have an influence on your playing style (talk about mood etc...). All I can say from my point of view is: there's been measurements with high class electronic equipment and the say maple sounds brighter. I personally tested both even many years before, when I didn't know much about guitar theory and since I was looking for a warm tone ONLY during that time, I ALWAYS ended up with rosewood. Today, after more than 25 years of playing and after having played LOTS of different guitars, I personally can confirm that I NEVER had a maple neck guitar in my hand which sounded warmer than rosewood neck guitars TO ME(!). So I DARE to say: yes, maple definitely sounds brighter. DO NOT DARE to say that I might not have been tricked by my brain without knowing it but i'm very positive that I'm right, ha ha ha.

Though A/B-ing two different guitars, even production models have extraneous variables, this software can tell and show the difference objectively: http://www.nch.com.au/wavepad/fft.html

Statistically yes, you have proved that rosewood is harder than maple. BUT it is true the rosewood gouges easier when used as a fretboard than maple, because is an open grained wood (meaning there is no finish on it). Maple, on the other hand, will have a urethane or lacquer finish on the fretboard, which is much harder than the wood itself. I have seen a rosewood boards with deep fingernail grooves in them. Sometimes maple will wear through the finish and get grey areas and then start to have grooves worn into the wood, but only after the finish has been rubbed away. That take some some time. I have dressed 100s for necks, and have filed the grooves out of rosewood many times. Just some food for thought.