So I've gotten some hands on with all of the units (15", 13" w and w/o touchbar). The fan noise is the worst on the 15" because they are always on. This irritates me in a quite room. The fans on the 13"MBP w or w/o touch bar are not always on. The fan on the non tb comes on with normal use (office work / media consumption before the tb version; the fans rarely come on with the tb model under light use and video streaming. I'm assuming because there is more surface area on the dual fan tb version. In regards to battery life, there is like a 5-15 minute difference running non-intensive programs ( i.e. flash player in the browser, photo editor, etc. are considered more intensive by not allowing the processor to idol). OLED uses very little power, so battery life for the most should be the same between the tb and non-tb if processors are at an idol as in my usage/experience. The dual fans in the tb version do not seem any louder than the single fan in the non-tb. As a main machine, the tb version of the 13" MBPs is the obvious choice for most IMO; if you want to save $300, then go with the non-tb. You are getting more for your money with the tb version. Get what works for you. On a side note, the speaker sound on the 13" tb is pretty good and has more bass to it than the non-tb version. I've watched the Detroit Borg video comparing the two and I have to disagree with him. The non-tb sound more directed at you, but the 13" tb sounds fuller and has more bass. The tb has tweeters facing through the top and low end project through the side vents.
I hope all of this helps some of you out.