Thanks for the replies so far.
I have a decent sized layout (9 x 16). I plan on running one of these monsters on the upper level that is now under construction. 0-99 on one side, 0-81 on the other. I must confess that I am a loop runner with only a few switches. I just like watching them go 'round. If I ever run it on the lower two loops, they are 0-72 and 0-81.
Alex, that J1 is sweet looking. I have been in love with the J1 since 3rd Rail came out with their version in the late 90's. The tender really makes that one.
The VL Challenger may be hard to find at this point. I want the UP Black version.
The EM-1 has a different look than most other articulated steamers. It has a utilitarian beauty to it.
The USRA is an ugly workhorse. An that's why I like it.