I had an iPhone 3G, and iPhone 4. I LOVED my 3G at the time, however, I absolutely HATED iTunes, and the horrendous syncing that you needed to do if you wanted to put anything on the phone. We got my wife the Samsung Infuse last year just before our daughter was born, and she LOVED it. She upgraded from a Blackberry something or other, Bold I think. Anyways, I was really liking her phone also, and I ended up getting the Samsung Galaxy Note, and this is AMAZING. I have the ATT version, SGH-I717, running Android ICS 4.0.4.
After having the note for more than a few months now, I have to say, I will NEVER be going back to an Apple product again. I can't stand their minimal incremental upgrades to the new models which get released every year. It's very nice to have a 16 gig phone with a 32 gig micro SDHC memory card in it, and 4G LTE also. I will say that iOS is very polished, but I still prefer Android. My note has had apps crash a handful of times in the past few months, but that is NOTHING compared to my iphone 4 constantly crashing to the home screen a few times everyday. There is also the upgrade path. Look at the sheer number of devices that run Android, versus the iPhone. If you go iPhone, you are LOCKED IN, there is nothing you can do if you don't like it, other than get an older one, or wait for a newer one.