well I'm going to wade in here with my thoughts...
I've had two mp3 players, one was quite early on and was a creative jukebox (looked like a CD player but wasn't) and I've now had a 3rd generation 20gb ipod for the past 3ish years, with no problems at all with the battery, but with the occasional restart needed, once or twice if memory serves.
I'm not really going to knock the creative labs jukebook as comparing it to something now-a-days would be slightly unfair, but I will say this, the battery life sucked, 2-3 hrs if you were lucky.
The ipod, well, there are good things and bad things about it, mainly itunes in my opinion, I don't like it, I'll admit I haven't tried the winamp plugin (which I will shortly) but the way apple is forcing everyone to use itunes to transfer music and is getting rid of the ability to just drag and drop songs to the ipod like any other normal player is rather annoying to say the least.
The battery life I've never been concerned about, it lasts any long journey i've been on and thats all I've ever needed, people make a big deal out of battery life and I personally can't see the reason, the problem people had with the earlier ipod is the way it charged through firewire I believe, everytime you connected it up it would start charging, maybe only a minute sometimes but all the little charges did the battery life no good what-so-ever. Each time you charged the battery its life would go down, hence each time you plugged it in you knocked one off the supposed 700 charging life.
I think apple realised that although a good idea to be able to charge through the computer it caused more problems than it was worth, plus the fact that USB was more wildly supported prompted the switch over to USB, which is probably a good thing.
The form and function of the ipod can't be knocked, it does exactly what its meant to do and very well, apple have sticked with the click wheel because it works better (I believe) than anything else out there. The look of the ipod's is also one of the main selling points, I think they are by far and away the best looking players out there.
I will say that I did try the creative zen mirco just today and without the need to read instructions I was able to queue up songs and navigate through it with little or no problems, but it was blantent that the menu system was a rip-off of apples, but in all honesty there aren't all that many different ways you can navigate an mp3 players functions.
People love to knock the ipod and find faults in it because it is so successful, (makes me warm inside to think this trait exists in non-english people too
).
However the next mp3 player I buy won't be an ipod...nope, it'll either be one of the SanDisk models, hopefully a flash model will be out soon with around 16gb of space, what with samsung just starting production on the highier capacity NAND chips, or I'm not going to buy an mp3 player at all but instead buy a phone that has a decent amount of space on it...namely the
Nokia N91, we all (well me anyway) carry our mobiles virtually everywhere we go now-a-days, why carry something else when you don't need to.
K, I might buy a small 512mb player for when I go to the gym but otherwise I shouldn't need anything separate, the N91 is due out buy the middle of this year, has 4gbs of space and expect an even highier capacity version to come out 6 months down the line, the era of the ipod will soon be over I think unless apple does something amazing that warrents its continued existence.