"Traded Droid Incredible for X."4.0 starson by albickers
Pros: Big screen=less eyestrain & easier typing
Swype built in (easy text entry once you get used to it)
Nice feel in hand, solid build
Dedicated camera button
Cons: User Interface not as polished as HTC Sense
Software sometimes buggy
Slightly big for pocket
Screen not as responsive as Incredible
Summary: I used an iPhone 3G, upgraded to the Incredible a little less than a month ago, then switched to the Droid X. All great phones. Here, I'll focus on the X vs. Incredible.
Short version: The Inc has a nicer screen for indoor use, and the software and user interface is more polished with more built-in features. The X has a more versatile screen and is obviously bigger. Otherwise, there is no clear choice between the two--you would have to make tradeoffs as outlined below:
User Interface: The X's UI is not as polished as the Inc's. But, this is a matter of personal preference (I prefer the look of the X widgets since they aren't as visually heavy, but they also aren't as functional). Some other UI/OS differences:
*The X phone dialer is not as nice--with the Inc., you can just dial the first few digits corresponding to a name in your address book.
*Voice control is easier on the X. Hold home then say a command (this makes up for the dialer)
*No option to reduce ringer volume when picking up the phone as with Inc. Inc. has option to leave phone upside down on a desk--incoming calls will then cause one beep. With the X, turn the phone over to silence the ringer (but it rings if it's already face-down).
*The HTC mail widget is worth a separate mention: it allows you to easily scroll through messages without opening the mail app. I found it useful as a way to catch up between meetings. No such widget is on the X.
Look and Feel: The X isn't really as big as you might think. I am a big guy, and it is nice to find a phone that is the right size for me. Relative to the Incredible, I like that the camera lens doesn't protrude from the back, and that the phone feels thinner. It does fit better in my hand, and the big screen makes everything from typing to reading easier. Those with younger eyes and smaller fingers might prefer the opposite. The X seems to be made of plastic despite reports that it is made of metal, but it does feel solid.
Joystick: The Incredible has a joystick, the X doesn't. It was helpful when editing text--no need point my fat finger in between letters to insert, I could just scroll the joystick.
Keyboards: X comes the Swipe kb built-in, plus a multitouch version of the stock Android KB.No clear winner here (I'm sure you can eventually get Swipe for the Inc).
Browser: The Sense browser is nicer. It is smart about re-wrapping text when you zoom in and out, and double-tapping usually zooms in where you want. The X browser doesn't re-wrap the text as well, and you will often find yourself using horizontal scrolling. No cut-and-paste in the X browser as with the Inc. I think you can open more tabs, but I'd have to confirm this.
Android 2.2: It is worth mentioning that the X will (per Motorola) get the Android 2.2 update in August. The Droid Inc. will get it sometime before the end of the year (per HTC). 2.2 is rumored to increase speed, among other things. But neither phone has it NOW, so who knows.
Screen: The X has an LCD, no real surprises: it is passable in most light levels. The Incredible's AMOLED screen was wonderful under medium to low light (very good color contrast), but too washed out under bright light. Again, it is a trade off--do you prefer a great indoor screen, or a good all-purpose screen? (Note: the Inc IS usable under bright light, but barely).
Camera: The X has a dedicated physical camera button, making it quicker to open the camera and take a pic. However, the Incredible has tap-to-focus. The X does do 720p HD video recording and there is a noise cancelling mic for video recording. (Rumor: Inc will get 720p in a software update soon)
Phone: The X's dialer isn't as feature rich (see above). I've made several test calls: on the Inc, the people I call reported that my voice was "tinny". The same people report great call quality with the X, perhaps because of the noise cancelling mic. (not present on the Inc). However, I found the earpiece speaker on the Inc. to be clearer and louder.
Reception: reception is good. Note that you can't compare reception by using the "bars"--you need to look at the db reading. On the inc, go to settings->about->network, on the X go to settings->about->status (better values are closer to zero). The X gets consistently better values than the Inc did in the same spots (but, that can vary from day-to-day, so this isn't conclusive). The X is getting a stronger signal than my dad's Moto Droid in side-by-side tests (~5dBm on average!), whereas the Moto Droid beat the Inc in side-by-side tests (about 2dBm on average). I don't know if this translates into any real-world benefit, and it could have more to do with my local conditions/towers. The speedtest.net app shows similar 3g bandwidth and Wifi bandwidth to the Inc. The X gets faster WiFi downloads than the Moto Droid in side-by-side tests (both seem to limit upload to about 2mbps).