Ive gone from Float 32s to Revs (2009), I wanted travel adjust but couldnt afford the Talas. I've also got a pair of 36 Talas on my other bike. To be honest, as someone said above, the RS are not a patch on the Talas or Floats. The damping is in another league on Fox's.. I've found the revs divey just when your doing slow tech stuff compared to fox, then harsh when your going fast over stutter bumps compared to Foxs. I've found the same in the past with RS.. fox's are just sooooo much plusher and behave as you want them to at the right time.
Regarding the stiffness thing, from 15mm Floats I ran to the 20mm Revs… I've not noticed the difference, and the worse damping of the RS I've certainly noticed.
Regarding travel adjust, the 3 position Talas is far superior to RS adjust, a quick flick, which you can do while riding. much better of Foxs.
All that said, you have to put the effort / cost into maintaining fox forks.. but to keep perfection, its a small price to pay. Over only a few years I've had Fox Vanilla 32s 05, Fox 36 Talas, Fox 36 Vans, Fox 32 floats, RS Revs 07, Revs 09, Pikes 08 and each time the Foxs have felt better. The only RS exception I've had is Boxxers… which are fantastic, but then I've never had a pair of Fox 40's