Here's my lineup:
Top: Case Logic belt case - generic and fits the iPhone with most skins and slim cases very well.
From Left to Right: Seidio Innocase II (notice cracking on the left side by the seam), Power Support Air Jacket (rip off), Hard Plastic Armor Case, Case-Mate Fuel.
I use the fuel when traveling and don't have access to a charging solution.
My Griffin Reveal should be here this Friday!
Visor Deluxe, Visor Prism, Casio EM-500, Casio E-200, HP Jornada 568, IPAQ 1910,IPAQ 4150,Ipaq 2750 (with Moto Razr V3),Imate K-Jam,Treo 750, HTC Touch Cruise, HTC Touch Diamond(US),iPhone 3G 16GB,iPhone 3GS 16GB