I'm going to buy the Agile (and soon!). With the solar package is the option to add a second bank of coach batteries, giving 440 amps capacity. I also very much like the pull-out table up front. I did some testing and it will work very nicely with my laptop computer.
I could see an advantage to having the shower on the driver's side, but it won't bother me much (if at all).
Another factor was that the RT dealer is close by and the PW dealer is about 4 hours. The PW dealer didn't have an Ascent to look at (nor did they have any older Ascents any time we checked, so we had to drive much further to just to see one.