for the camera wise.. yeah you should go for N86
N86 still isnt stable in firmware..but dont worry..i'm sure the bugs wil gone in new firmware...

but for me as N85 user.. i will wait for first Nokia 12 Mpx 

hmmm.. i have N85.. and i tried N86 too...

what can I say
- N85 has better design
- for me N85 keypad is more comfortable
- N86 has better camera function
- the quality of photo produce by N86 is also better than N85[so better lens+added some megapixel+variable apertures]
- N86 use 3rd gen LED flash[ i have no idea.. but when taking video in night with LED light on.. you can see the video taken by N86 is brighter than N85
- N85 is more stable in firmware/software aspect.. but i'm sure Nokia will release new firmware that can fixed the bugs

overall+conclusion
- N86 is upgrade of N85.. thats why N86 win in many aspects... but well i hate the design and its look dull[the grey and white  too]
- N86 is worth buy since than its features 8 megapixel phone with variable apertures[make your photo better]


But for me.. i am N85 user... so i will wait for Nokia 1st 12 megapixel[dont know when.. perhaps middle of next year]

you need to test them by in your own..
for me N85 keypad is better...
for comparison of screen.. there isnt much different...

you can compare those phone..
1. make sure that N85 and N86 has a same theme,,
2. then compare it by yourself..

- they has almost same screen display..
-use same screen[AM-OLED], 16m colors]
- i cannot spot any major differences

N85 [8GB] - RM 1230(AP) - RM 1495 (Original)
N86 -RM 1476[AP] - N86 8GB -- RM1700[Original]