IMHO they are two completely different animals. Although I have no experience with the Trek (didn't even know they made eBikes), i have ridden the Raleigh Misceo iE which uses the Shimano STePS system combined with an 8spd Alfine internally geared electric shifting hub. That system worked wonderfully, but it was the electric shifting that I really liked. The Trek doesn't appear to have that. The Raleigh Misceo iE retails for $3,200, but can easily be had for $2,700 OTD. Personally I like the mid-drive setup best and you get the advantage of the gears with it.

If you are set on only those two, I'd say try to cut a deal on the Trek. I will say that those range estimates look very optimistic and I didn't see a watt hour rating for the battery. If all STePS are the same it's probably 400Wh, so 20-40 miles range would be my best guess.

I doubt you would be unhappy with the Trek. The other may end up disappointing and then where will you be?