I had a 920 up until the end of last week (I sold it as it turned out WP8 just isn't for me yet). The reason I say this is because I keep my contacts with Google. I simply added my Gmail account to the 920 and then selected to have my contacts synced to the phone from there. It worked flawlessly. It works pretty much like Gmail on an iPhone used to work (before Google removed the Active Sync option). Just add your mail account and let the phone sync with your Google contacts. No CSV business needed.
Thanks this is actually very helpful.
edit: I just got back from AT&T my third now 30min session messing around on all three platforms. I noticed some things that didn't quite jump out at me before.
-Windows phone:
Again I love the look and smooth feel of the UI the absolute most however I paid more attention this time.
Immediately I noticed that I quickly swiped to the second page to access the list items to select.
Why,
I found the tiles to be either overly busy and or too consistantly generic to bother with. I wanted to see as much at a glance as possible, the odd square/rectangle shapes took up to much screen-estate resulting in a bunch of scrolling often passing up what I actually wanted. To tell one square from another you really have to pay attention to the text within it due to the same color and shape of most the squares, this caused me to slow down with the scroll swipes. Ever thumb through a deck of cards? the jokers standout (animated tiles) but you easily pass up the 3 of diamonds or the 2 of clubs (same color square/rectangle). That really bugged me. Just may be though one of those things to get use to.
Also I don't really think I'll like the calander (I use it ALOT), the full month view was too small. I like most things at a glance especially the month view, but the zoom from what I was able to discover was only by a single day at a time, blasted.
Other than that I found myself stuck on the Nokia..
Android: simple, I found that each time I played on it the more I hated it...
Going from both Android and windows phone and then hopping on the iphone 5 (the phone I'll most likely end up with after-all)
I will have to agree with many here on Macrumors. Although most ergonomically correct and super simple to use (which has greatly spoiled me) the UI is now stale and dated, it needs a much needed refresh.
For the amount and type of media we consume and the various methods of communitcation we all use it for, wider would do it some real good. For dumb phones one hand use is absolutely neccessary it only make perfect sense, for a smartphone where the use case is much more dynamic no. The nokia 920, the galaxy3 felt very natural to view, I never felt the need to pinch to zoom on those as I did on the iphone.
After today I realized that I prefer (not note big but..) a bigger phone. For now though I'll have to make due with a perfect but hugely dated UI on a beautiful high quality ergonomically narrow smaller than it needs to be phone.