Will you use the S-Pen? Then it comes down to size........for me the N3 was just too big as a phone. The S-Pen was the biggest attraction but I ended up not using it after the the first few days. So it comes down to how you would use it.....
I won't use the S Pen. The reasons to go for the Note 3 would be the battery life (don't know if it's that much better than the S5), more RAM (which could be more important after reading some of the comments from you guys on the S5 and it's multitasking) and that it doesn't have that annoying (for me) USB port cover.
S5 has a brighter screen, better camera, smaller body, nicer back cover and that's it for me. Don't like the USB cover (don't want to spend more money on the wireless charging).
I don't think there's much difference between both, is there? From what I've read the extra GB of RAM on the Note does make a difference in day to day use, but I'm not sure.
Both have the chrome bezel, which I also hate.
I'm just giving it a thought. Would prefer the M8 but the camera kills it for me. G3 is also nice but don't want QHD (they also say the display is dimmer than the one in the S5, and don't want to have to deal every week with the brightness issue on LG phones) and price is 499 here.