Nothing in this world is perfection.
From all you write, you are finding for perfection but just not admit only.
Why life so hard? You can't be happy and satisfied forever as you are too towards for perfection. They is no such thing in this world!
Phone: Redmi Note & HTC ONE (M8) | ROM: Stock (Redmi) & Android Revolution HD 10.2 (M8)
Future Phone: Xiaomi Mi4
Ex. Phone: Nokia 3310, Samsung S500, Nokia 7610, 7270, 7280, SE K750, Nokia N73, LG Viewty KU990, Samsung Pixon, UltraTOUCH, OMNIA II, Nokia 3120 Classic, Google Nexus One, Samsung Galaxy S II, S III, Sony Xperia Z, Z Ultra, Samsung Galaxy Note 3.
Tablet: Sony Xperia Tablet Z | ROM: Stock v10.5.A.0.230
Future Tablet: Still Finding
Ex. Tablet: Google Nexus 10