I'm not gonna sit here and pretend I'm some movie critic that has seen every Marvel movie ever made (I've seen like 10...maybe). But, BuzzFeed's order has me confused. Iron man (2008) despite being the first Marvel movie in the universe released, is the 3rd movie you should watch!?
Take a look for yourself: https://www.buzzfeed.com/angelicaamartinez/marvel-movies-in-order-mcu-guide?origin=web-hf