Okay. So this is the narrowed down list according to my budget and what I gathered from all over the threads (correct me if I'm wrong).
ATH-M50 - Used to be the king, favored by many? Low 38ohms, no amps required. Recessed mids. Bad soundstage. 10 oz.
DT770 - Clarity. 32ohms, 80 will be bass heavy (still good w/o amp), 250 will need an amp to fully bring out its magic. 10.58 oz.
Comfortable, in fact better than the m50's even with glasses on (not 20/20 vision here). For that I might disregard the 250 coz i think 80 will suffice, if i were to choose dt770.
SRH840 - Durable. Excellent sound quality. Too heavy for some? 44ohms. 11oz.
My top priorities would be music quality and comfort over other factors (design, portability, cables. Any chance to narrow it down to the perfect one which suits my music preference? Hope I didn't missed out anything