@rakesh_ic I bought Nexus 5 on day 1 when it was launched (in India, 20th November). And I have changed alot of roms, tons of kernels (not that stock sucked, just that I was looking for the sweet spot). I have never, ever got a FC on my Nexus 5 till today. I sure had it on my nexus 4 last year with some apps.
Tell me one good app (candy crush doesn't counts) which FC's. Name it. I have never played candy crush and I have heard alot of shit for it. Hate the fb notifications for the same as well, that's why I blocked it. I'm not fighting/trolling or anything here, actually happy that we can have some good conversations as you are a next Nexus bud here. I have used my nexus 5 to the fullest and I'm really really happy with it. Battery life aside (I'd love if next nexus atleast have a battery life similar to HTC M8 doesn't matter how much mAH it has).
This is just a myth abt UI/UE/UX abt iPhone being fantastic. I have used plenty to tell you general UI is much more smoother of a nexus 5 compared to iPhone 5S. My brother has iPhone 5S so does my Mamu. Even some friends and most of them used to argue with me saying nexus is shit. But after a month used, we used to have conversations abt the same , and they used to tell me how they bought iPhone just for the hype. They didn't knew shit. The general UI of iPhone 5S has minor lags, you can easily see it when scrolling through home screens. Many won't admit that, but it was just not me who noticed, there was some 5 more friends of mine who said the same when we were discussing the matter. No we weren't high/drunk. Now, let's talk about popular apps being Apple's so called "User experience". Facebook. It ****in' LAGS. Lags, big capital LAGS. Same with iPhone 5S, iPad and yes even in Nexus 5. Why is that? No it's not OS's fault, it's developers fault. This will remain the same no matter what OS you are gonna use. Be it windows/iOS/android.
Also, sure android is open-source but sometimes this works against Google. Galaxy phones gives android a bad name (because they are sold in millions units). They have skinned custom... blah blah blah, I'm sure you know the rest.
For the iPhone hardware, the same Ram comes to other smartphones, same HDD comes to other flagships, and Qualcomm's silicon can't be questioned.