I tried the Arione and the Aliante. Both were too narrow for me, although I liked the Arione very much as long as the rides were not too long. The issue was more my wide seat bones than the saddle. I like the Arione design with a longer seat and a rear tip than raises a bit making it very nice during climbs.
They now have a wider version of the Arione called the Antares. I haven't tried it.
Many swear about the Aliante, it didn't work for me as I prefer flatter type saddles such as the Arione.