[HTC One X] AJerman:
From another former Samsung user:

1) How does it really feel in the hand? Does it feel like plastic, or more like rubber? The plastic is one of the things I hate most on Samsung phones.

It feels far better than any Samsung. I didn't really complain about the Samsung designs that much, because they never felt like they weren't solid enough for me, but the One X feels much better. There IS something to be said about a design without a removable back.

2) There is no wake up delay, right? On Samsung phones, after you touch the power button, you wait for around 1 second before the phone wakes up. How is it on HTC One X?

It's fairly common to have a very slight delay. I don't have any issues with delay though.

3) Is the power button easy to press? One thing I like about Samsungs is that the power button is easy to reach on the side. HTC puts them on the top. On a huge phone like this, how easy is the power button to press, especially when you're using it one handedly?

Uhh... I don't really know the right answer to this. I think I kind of like the power button being on the side a little more, but I have no issue with it's location on the One X. I typically only have to press it once when I'm using it, so it's not like I have to frequently reach to the top to press it while I'm using my phone. I'd say it's very much a non-issue to me.

4) Does the phone react instantly when you press the capacitive buttons? Again, one thing I hate about Samsung is the hard home key, which also has a delay. There's no delay when you press home button on One X, right?

Yep, capacitive response is very good. The Tegra 3 uses it's companion core as a touch screen controller which allows it to have very smooth reactions to your touch.

5) How good is sound with a really good pair of headphones?

Sound is decent. Beats is mostly garbage. My previous Samsung's blow the One X away in sound quality with the Wolfson DAC and Voodoo Sound. But then again, not much compares to those. This is really hard to answer though, because it all depends on what you want to hear. Beats is bass heavy, and this phone definitely has that if that's what you want. It doesn't have the pure quality as my SGS or Infuse though. Compared to your SGS2 though, it's probably at least on par, if not better.

6) How much space is really left from the sdcard to use? Some people say 25 GB, some say 26 GB, exactly how much is it? This is my only worry, since I have 17gigs of mp3s and I want to carry it all with me.

Roughly 26 GB.

7) The lock screen can be removed completely, right? I hate all lockscreens, they are utterly useless. Nobody buttdials anybody, especially not me. I love the no lockscreen feature on ICS, I hope HTC kept it on Sense 4. I really don't want any lock screen at all.

I'm pretty sure there are a few apps that can change/disable your lockscreen, but I use mine with an actual lock, so I don't really use them. Of course, if you use a custom ROM, this is not even a question.

8) Long press volume to skip songs feature is a must for me. I see that custom roms already have it, so just to be sure, it works, right? This is absolutely critical for me, since I listen to music without taking the phone off my pocket.

Not sure. If it did do it, I'd make sure to disable it. I can't stand that.

9) Can the crappy horizontal multitasking thing on Sense 4 be replaced with standard ICS recent apps screen? With sense, you need to swipe a lot to get to an app, while on stock ICS it's a lot easier. So far I haven't seen any mods that do this, but maybe I'm missing something.[/QUOTE]

Multitasking on the One X is just fine for me. I have no issue with their design over the stock ICS design. If you want stock ICS, you can flash a stock ICS ROM.