Samsung Galaxy III for me. Came from an iphone 4 so the android interface takes a little getting use to. Love the Micro SD card option. Apps while not as many as itunes , Google Play has more than enough both free and paid. Like the voice to text / email / phone feature , it's relatively accurate. Have not linked it to a blue tooth yet so can't speak to that. Have to be careful how many wiglets you have running as battery life is not great. I was in a remote location all day did not turn off any radios so phone was constantly searching battery died around 10:00 pm. I have since bought a spare battery (another nice feature over the iphone)
Touch screen is good - not quite as good as the iphone I think but good. Loaded a bunch of music , but don't listen to it much (I have an iTouch for that). Calls are crisp and clear (carrier and location dependent) I know it's a phone after all. Interface has several 3rd party launchers, but even with stock completely customizable. I don't think it will replace a ps camera , while the camera is great in good light , at night I find the AF really struggles. Has some nice features , burst mode, detect smile (that actually works), etc. Email set up is easy (I have 3 accounts). Can act as an access point bonus for me as I canceled my USB wireless stick subscription.
It's the first Andoid phone I have owned and my 3rd smart phone (HTC & iphone). I was looking at the Galaxy Note (my wife has that) as I love the screen and pen, however it's just too big for me.
My opinion , it's like all electronics , it's pretty much state of the art today , but that never lasts more than a couple of months
(in the Android world anyway - and Windows 8 coming out soon). Get what you like today and don't look again until you are ready to upgrade.