Well, thanks for the reply and advise on this, i actually thought that i should have include my brief "feeling" about each major brand and flagship for you guys to understand my "preference".
Apple - Iphone 6+ & X - Great phone, utlimate fluidity, ecosystem doesnt suit me (freedom) & single Sim
Samsung - S8+, love the sleek design, software way better than last time, but dont like exynos processor (i wanted to use Google camera apk for pixel which requires Snapdragon), and software performance will deteriorate over time
LG - V10 & G5 - software is well optimized, wide angel camera is love but cant compare to standard nowadays, i quit because of bootloop.
Sony - XZ premium - fingerprint scanner need to wake phone only can use, overall great, but to me the network (data reception) wasnt really that good back then.
Huawei - Mate 9 pro & mate 10 pro - technically a beast, superior battery, but can still feel Kirin is lagging behind Snapdragon on gaming and also because the camera APK issues, and lastly, no wireless charging, slow to no android updates.
Oneplus - Didnt even bother to try because of Subpar camera, hence not flagship to me.
HTC - U11+ - another beast, all rounder, fluid, snapdragon too, quit because dont like the fact that HTC is not that famous and no wireless charging, not so premium to me.. (well this is on me, but i love them, really)
All the above phone suffer Bluetooth Issues (Except LG & Apple), when i connected bluetooth audio device to the phone, 3 different earpiece and one megaboom, very often the music will still play from the phone although device is connected, googled a million times but no solution to date (restarting phone will solve the problem for the next connection, after few connection, the problem will come back, definitely not a hardware issue)
Pixel 2 XL - All rounder, fluidity after Apple, HTC catching up, clean UI, every minimal thing is perfect, feel premium too, i actually thought i will stay put with Google and bought G5 as my spare, but gosh, i really cant stand single sim especially when i travel
Overall, i love HTC, Sony & Google
Why XZ2 premium : all the specs tick the boxes, second fastest android updates after Google, and yeah basically have my eyes on them since they announced.
Yeap i know i can wait for this phone to be available again from Mobilehardware, but i am just so eager to get my hands on it.. hahaha..
Sorry for the lengthy post.