The Monte Cristo is amazing. That was my first sandwich. You can probably split any of these between two people if you factor in the sides.
Second time I came here, I did the MELT challenge, where you have to eat a 13-cheese, 5 lb grilled cheese sandwich plus cole slaw plus fries without going to the bathroom. I managed to finish the entire sandwich but couldn't do the sides at all. I pretty much failed to strategize and should have taken a little bit of each thing (sandwich, cole slaw, fries) in circles or just gone kamikaze and eaten the thing messily and manically.
If you end up doing the melt challenge, block out a couple days for recovery. I threw up in the glove compartment on the way home and won't even get into gastrointestinal issues.