I've never kept a phone longer than 6 months so its hard to tell Nexus 4 will be my first exception - This is at least a 2 year keeper. I've literally had 25 smartphones over the last 3 years and am constantly teased at work about it, but I think the best Smartphone I've owned (Besides the Nexus 4) was the HTC One X using the S4 Dual Core. It still has the best screen out there in my opinion, had a very capable camera especially when software modded, and superb build quality. It's battery life was also top notch. The only thing that slightly held it back for some was 16GB of storage, but for me that's fine. (My nexus 4 is 16gb) I really enjoyed the Note N7000 International Version. It was an all around excellent phone, just like the new Note II (Which I haven't owned yet and probably won't just because of my promise to keep the Nexus 4) The only negative on the original note was the AMOLED screen. This is just a personal preference, but I will take a Super LCD or IPS LCD screen anyday over Samsungs AMOLED screens. I love everything about my Nexus 4, and with all the new color mods available, the IPS screen is top notch now. The only thing I would call a Negative about it is the Camera... man does Samsung and especially HTC have LG beat in the camera department. Even the 13MP version on the Optimus G sucks compared to the One X camera in my opinion. The worst smartphone I ever bought? - The Iphone 4. It was was my first and only Iphone. iPhones are just not for me.