Fair enough... we all have our own likes and dislikes.
A couple notes about your review though. I picked mine up this morning, so I've used it quite a bit.
- I'm not sure what you're seeing with the screen. It's very bright, vivid, and crisp. I'm not sure what you were seeing that looked pixelated. On the brightest setting, I had no problem using my phone outside in the sun today. My photos from Picasa look amazing, videos I recorded today looked amazing, and Avatar looked better than I imagined. It is a very impressive screen, and is receiving the hype for good reason.
- The lag. Turn off the Samsung widgets. They're pointless and dumb and are huge resource hogs. I do notice a slight hick up when using a few of those widgets, but without, it flies. My experience with the MT Slide's Sense widgets did the exact same thing. TouchWiz has Sense beat in terms of functionality, while Sense is a bit more customizable. It comes down to personal preference again, but TouchWiz 3.0 is very much improved from 2.0 and is actually very snappy.
- Signal strength. It's fine. I live in a small town, mostly rural like I said, and my reception is the same as it always has been on my previous phones. In fact, my wife has a new Nokia flip phone and there were spots in some stores today where I had service and she didn't.
- Flash. Check out the night mode if you can. The quality is literally the same as cameras with a flash at night. It's kind of impressive how well it works. But if you absolutely need a flash, that's your call.
In comparing with the Droid X, it is fair to say that Motorola has Samsung beat in terms of build quality. No one beats Moto in this department, period. Part of this is Verizon's standards being incredibly high, and Motorola's focus on this area. But that's not to say that the Vibrant is built poorly, because Samsung is probably just behind Motorola in this department, and definitely ahead of HTC.
So I guess these are some of my own impressions in response to yours.