While I agree with the vast majority of what is being said I think there are a few notable exceptions.
Me too...it's a good civil debate, because though we are discussing the issue from different viewpoints, we're all closer than it might appear and generally agree with some of the points being raised on all sides.
Not every one wants to use after market or used glass. I'm not saying that's either good or bad. It's just individual choice...Go to B+H and try finding a Tokina 11-16 or 12-24 in a Sony or Pentax mount.
Just wanted to point on that one - you were mentioning name-brand in one segment, then shifted to third-party in another. True...Tokina doesn't currently make Sony mount for their UWA lens. However, Sigma makes the 10-20 F4-5.6 and 10-20 F3.5, Tamron makes the 11-18 (as well as a Sony branded version) and the 10-24 F3.5-4.5. So quite a few third-party UWA lenses available for quite reasonable prices. I have been very happy with the performance from the Tamron 10-24 having just shot with it at Disney last week, day and night, all handheld...the F3.5 was not all that much slower than the Tokina's F2.8, giving me good usability at the wide end even in low light. While it might be nice to have the Tokina as an option as well, that goes to my point that there are very good alternatives available for most photographers to be happy. And if you go Pentax, you can have all the Tokina 12-24 F4 if you're willing to pay a little more for a Pentax label on it. In Olympus, you've got the Zuiko 9-18 F4-5.6 as well as the Sigma 10-20 F4-5.6 available.
I'm not going to get into the on board Vs in lens stabilization issue simply because no one will ever agree on that between the party lines. You say you have on board OS. I say in lens IS is a LOT more effective at longer FL's.
No doubt - I agree BTW. Lens-based stabilization does seem to have a bit of an edge overall...but the slight advantage in favor of in-body for me is that I have stabilized used lenses, stabilized $50 lenses, and stabilized primes that aren't available in Canon or Nikon mount at any cost. Plus, I can still buy a stabilized lens for Sony mount, and turn off in-body stabilization.
All brands have some great points so it's just a matter of deciding what is important to the buyer. I'm just suggesting that is some thing that should be factored in to the buyers choice.
To that we certainly all agree! Consider all factors, including lens selection and future plans. I think most of us are just saying not to automatically rule out all but two manufacturers based on lens selection alone, as it is only one of many factors to consider when purchasing, and often the lens selection isn't as limited as some may be led to believe.
I can't agree with that for several reasons. First most of us adapt pretty quickly. A new body might seem awkward at first but you get used to it. Yes you want it to be comfortable and feel good but no way would I ever place that over lens selection. It's not like many are hand holding for hours on end. Bodies come and go as quickly as technology changes. Most want to stay with in a line of glass they they have committed to even if they upgrade their body in the future. Two very good reason to put lens selection over feel.
I'm going based on personal experience. I have Pentax and Canon film SLRs, and Sony DSLRs. I had some lens legacy, though not enough to be the deciding factor. My Pentax lenses are all older manual focus, while my Canon's are EOS AF lenses. When looking at DSLRs, I tried different bodies out, as well as comparing features I was looking for. I do often carry my camera bodies around for many hours by the grip, either hanging in my hand at my side, or up to my face shooting. I do a lot of bird photography, and walk many miles with my camera in hand with a huge zoom lens mounted. When I travel, my camera with travel lens basically never leaves my grip. So grip design was of utmost importance when selecting a camera...as was the location of controls and comfort of buttons and jog wheels for easy use. This happens to be one of those things that is intensely personal - what works for someone else wonderfully could be awful to me, and vice versa. As it was, I had to rule out Canon first and foremost, because I was extremely uncomfortable holding and carrying the cameras I looked at. I found the controls did not fall under finger, which left me looking at finger placement visually before moving to my face, or pulling away to glance at what I was changing. I was OK with Pentax grips, but didn't like menus and controls as much. Nikon was fairly comfortable to me, and controls fairly intuitive. I wasn't really interested at the time in 4:3 so ruled out Olympus. Sony was comfortable to me, plus I found the menus and control layout completely familiar, having had a several advanced P&S Sonys. I was able to shoot with the camera without ever moving my eye from the finder, and got all the features I wanted. Most of all, I can carry the camera with an 8Lb lens, hanging off my fingers my the grip, all day for hours on end, and am comfortable and secure. It happened to mean a lot to me, and has resulted in me bringing my camera with me more often, and shooting more. I had to look back and realize the reason I took no more than a handful of shots with my Canon SLR over 5 years...I never really got used to the controls or adapted to it very well. It never delivered the feel my old Pentax did...and though it was a fine camera, it ended up spending more time in a bag in a closet than traveling with me and shooting.
So while it may not be important to a few people, and some like you may be more than willing to adapt and end up comfortable, I find myself less adaptable and more prone to not use something as much if it isn't comfortable and instinctive...and I suspect many others out there may be in the same boat, as I've known more than a few friends with cameras that never seem to bring them along, and when they do, they are always putting them down or putting them away after a shot or two...just like I used to. And I've seen some of them buy new cameras that they found more comfortable and they're suddenly out shooting all the time (my brother for example with his Nikon D90).
It's just another of the many points to consider, that makes purchasing a camera a complex but ultimately rewarding decision, and best decided by considering the broadest and widest possible selection rather than narrowing one's field before you even start looking.