more on the ideal rental bike

Right now I'm doing trek 7100s, very similar to the 7.1 but with some suspension which might make it have a broader appeal?
http://www.trekbikes.com/us/en/bikes/town/recreation/hybrid/7100

what is the ideal rental bike?

For brand recognition and quality, seems like it should be a major brand, such as trek or giant. I think for most people in the city a hybrid bike is the most useful (no need for a mountain bike and a road bike is hard to ride and more likely to get flats). Then the question is what are the big sellers? For trek the top seller is apparently the trek 7.1 FX. So far I've focused on the 7100, but the 7.1 is very similar.
http://www.trekbikes.com/us/en/bikes/road/fitness/fx/7_1_fx/

Some examples

Right now if you search for "monthly bike rental seattle" you'll get a few links to threads where people are trying to find a bike to rent for a few weeks. They can't find anyplace to do it. Most people just suggest that they buy a bike on craigslist. Now there's a solution.
http://forums.roadbikereview.com/pacific-northwest/where-rent-ride-nice-bike-seattle-166368.html
http://www.bikeforums.net/showthread.php/278973-Bike-Rentals-in-Seattle

Seattle monthly bike rental blog

This is the blog for:
http://www.seattlemonthlybikerental.com/

We've seen visitors come in to town for a few weeks to a month, wishing they could rent a bike the whole time. Turns out it is prohibitively expensive. So usually they just don't ride at all. Or they buy an old beater bike that doesn't work very well, and then have to get rid of it. So we started seattle monthly bike rental so those people have someplace to get a reasonable bike for longer than a day.