I've tried all the ones you listed and liked them alot. Picking a lockscreen is really dependant on your mood, I guess. You have about 10,000 lockscreens out there so you can find one that fits your liking. I only have about 200 of them 😀 but I find myself liking the minimalist approach (at least for now) in terms of lockscreens. The HTC Animated one is nice since, well, it moves. I'm changing my LS about once a week so it all depends on what I'm feeling at the moment 🙂