I've tried both the Vitesse and the Aliante.

The Aliante felt harder, and it was more difficult for me to shift positions on the saddle. I've heard a similar sentiment echoed by one of my (male) riding partners. He said that the saddle only allowed for only one riding position, and that he got serious chafing from it after only 12 miles on a road bike. And this is *not* a guy who is finicky about comfort! Despite his warning, I tried the Aliante on a 45 mile ride. The overall shape of the saddle was pretty agreeable to my tush. But after being in one position for so long, I got some numbness on my buttocks and the edge of the chamois on my shorts actually rubbed me raw at one spot, despite my liberal use of chamois creme. It was bad enough that I yelped when I got in the shower. Neither of those things (numbness nor chafing in the buttocks) had ever happened to me before. On the upside, I had almost no soft tissue discomfort up front. Up until that point, that had been my biggest problem with several saddles that came with cutouts, so after trying the Aliante, I considered it to be my best fit.

To me, the Vitesse seemed a little bit softer and easier to move on than the Aliante. It made it easier for me to shoft positions on the saddle, and I didn't get any numbness. On the other hand, I did have some soft tissue discomfort on long rides (> 50 miles). The two were similar, but after trying the Vitesse a couple of times, I felt that it was better for me than the Aliante.

This is completely unrelated to the Aliante vs. Vitesse debate, but I think I should let you know that I've found that I've found something that works even better for me than the Vitesse. It's the WTB Rocket V Pro Gel, which I got for what I consider to be a very reasonable $75. It has a titanium rails and weighs 295g. So far I've ridden it comfortably for up to 70 miles at a time. If you prefer something lighter, there's also the Rocket V SLT with Ti rails, DNA padding and a leather cover at a much lighter 195g, for $90, I think. Compare that with the Aliante with Ti rails, which is $200.