ok I'll chime in. I've got (or had) both; X65 and Warthog.
In terms of looks, they are about equal. Both setups look absolutely stunning, and if anything I think the X65 throttle wins for me in the looks department. I also preferred the X-65 throttle - it's more comfy to hold than the Warthog one and has more in the way of configurability (rotaries etc the Warthog just doesn't have).
In use though, the two are worlds apart. I adore the X-65 throttle, and absolutely hate the stick. It's a personal taste thing I know, but most of my flying is done in Helo's, The A-10 and old rotary engine warbirds. I just could not ever get the X-65 stick to 'feel right'. You don't realize it until you pay attention but when you fly with a moving stick, you subconsciously register the position the of the stick in the real world and balance that against what you are seeing and feeling in terms of the aircraft's response. Also, with a moving stick you apply pressure to move it to a certain point, then relax that pressure and apply a 'holding' pressure to keep it there. With the X-65 you've have to constantly apply that 'pushing' pressure, there is no concept of push then hold.
In terms of settings the sticks up, both are a dream to configure, even without the programming software provided by Saitek and Thrustmaster. The X-65 stick for example is so similar in layout to an F-16/A-10 stick I had it set up in minutes within DCS:A-10 to work just the way the real one does. The Warthog of course doesn't require this - it just works.
My old X-52 broke and I had to order a replacement set of sticks quick for a magazine article I'm working on. At the time the Warthog was exceptionally hard to get so i ordered the X-65. I grew to hate it very quickly and at the first opportunity ordered the warthog and sent the X-65 back.
So, there's my opinion from someone that's owned and used both and that flies a hell of a lot (I write about it).